| Theme | Intro | Synopsis | Nodes | Collectibles | Medals | OST | Facts |
| This Integrated Strategies theme's updates have been concluded on the Global server of Arknights. As such, the contents of this page and the related subpages have been archived. |
Integrated Strategies #3: Mizuki & Caerula Arbor[note 1] is the third theme of the namesake roguelike game mode in Arknights.
Additions:
). Two nodes connected this way remains part of the same step.
Changes:
Subjective Imagination) now will still be awarded if the current cap of the theme's milestone currency is reached.
Exclusive features:
to be accessed.
New devices:
New enemies:
| Normal |       |
|---|---|
| Elite |     |
| Boss |             |
Additional information:
a = (1 + b)c (a is the total buff; b is the buff percentage; c is the floor number).
| Level | Description | Buff | Score |
|---|---|---|---|
| Calm Seas | May the ocean remain this gentle forevermore
|
0% | 50% |
| Surging Waves | The ocean's true visage is gradually revealed | 0% | 100% |
| Surging Waves 1 | Friendly units take +15% Elemental Damage. | 1% | 105% |
| Surging Waves 2 | Obtains a random cursed Collectible upon entering 3F. | 2% | 110% |
| Surging Waves 3 | Enemies have +10 RES. | 3% | 115% |
| Surging Waves 4 | 3★ and above Operators cost +1  to recruit.
|
4% | 120% |
| Surging Waves 5 | Boss enemies have +15% ATK and DEF. | 5% | 130% |
| Surging Waves 6 | Starts with -15 Light. | 6% | 140% |
| Surging Waves 7 | Enemies have +15% MSPD. | 7% | 150% |
| Surging Waves 8 | Friendly units take +15% Elemental Damage. | 8% | 150% |
| Surging Waves 9 | Enemies have +15 ASPD. | 9% | 150% |
| Surging Waves 10 | Starts with -15 Light. | 10% | 150% |
| Surging Waves 11 | Elite and boss enemies have +20% HP. | 11% | 150% |
| Surging Waves 12 | Enemies have +10 RES. | 12% | 150% |
| Surging Waves 13 | Friendly units take +15% Elemental Damage. | 13% | 150% |
| Surging Waves 14 | The Unit Limit is reduced by 1. | 14% | 150% |
| Surging Waves 15 | Elite and boss enemies have +20% HP, ATK, and DEF. | 15% | 150% |
| Surging Waves 16 | Starts with the 养育者基因种 Collectible (may gain Improved Genes and Genomes after clearing an operation). | 20% | 150% |
| Surging Waves 17 | Rejections become Combined Rejections. | 25%/20% | 150% |
| Surging Waves 18 | Elite and boss enemies have +30% ATK, and take -50% Physical and Arts damage for 20 seconds after spawning. | 30%/20% | 150% |
The three Squads new to Mizuki & Caerula Arbor can be upgraded in Cognitive Shaping.
Upgraded effects are denoted in blue, while upgraded effects introduced in Expansion II are denoted in turquoise.
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Mind Over Matter Squad
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Resourceful Squad
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People-Oriented Squad
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Leader Squad
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Gathering Squad Starts with +2 squad size and Unit Limit. Unlock condition: Clear 3F.
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Support Squad Starts with +20  and +2 .Unlock condition: Obtain 150
across all runs. |
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Spearhead Squad Starts with only 1  (the Life Point cap remains unchanged), but friendly units have +15% HP and ATK.Unlock condition: Complete a run with at least 10
remaining. |
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Tactical Assault Squad 4★ or higher Guards and Vanguards cost -2 to recruit and -1 to promote, and may be automatically promoted when recruited.Unlock condition: Complete a run with at least 5 Guards or Vanguards recruited.
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Tactical Fortification Squad 4★ or higher Defenders and Supporters cost -2 to recruit and -1 to promote, and may be automatically promoted when recruited.Unlock condition: Complete a run with at least 5 Defenders or Supporters recruited.
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Tactical Ranged Squad 4★ or higher Medics and Snipers cost -2 to recruit and -1 to promote, and may be automatically promoted when recruited.Unlock condition: Complete a run with at least 5 Medics or Snipers recruited.
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Tactical Destruction Squad 4★ or higher Casters and Specialists cost -2 to recruit and -1 to promote, and may be automatically promoted when recruited.Unlock condition: Complete a run with at least 5 Casters or Specialists recruited.
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Research Squad
Unlock condition: Earn 1000 Command EXP across all runs.
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First-Class Squad Gains a random Advanced Rec. Voucher when recruiting the initial Operators. Unlock condition: Complete a run with at least 20 Operators recruited.
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| You overcame at least two floors in your last exploration. You'll be able to receive more assistance this time. | |
|---|---|
| More supplies | Starts with +3 Objective Shields. |
| Give a speech before departing | Starts with +2 .
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| Reserve fund support | Starts with +5 .
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| Purchase a Collectible | Starts with a random Collectible but with 0 .
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| Reclaim loot | Starts with a random Collectible but with -1 .
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| Just grab something | Starts with  Hot Water Kettle.
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| Bring an extra key | Starts with +1 .
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| Ask for a good omen | Starts with +2 die rolls. |
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Operation Everyone has their weapons drawn. They're definitely not here to negotiate. Self-explanatory.
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Emergency Operation Some violence may well exceed your expectations, a very common occurrence. An ISW-NO operation with various handicaps, similar to those of Challenge Modes, which always awards a Collectible when cleared.
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Dreadful Foe Criminals, ruffians, and the damned... You're in trouble. An operation featuring I.S.-exclusive bosses, which can be distinguished with the ISW-DF code.
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Encounter New friends, old rivals... Strange encounters never age. Only scars stand the test of time. A random event.
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Wish Fulfilled There are many ways of making a wish, but the wish itself is almost always the same thing. Gives a Collectible of the player's choice.
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Safe House Nobody will bother you here, and there's plenty of food and water. No need to be so tense all the time. Gives a free reward of the player's choosing from three of the options listed below:
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Downtime Recreation A little indulgence in life's simpler pleasures goes a long way in fighting the monotonous and the harrowing on your long road ahead. A mini-game where the player spends
 Originium Ingot for additional resources or even Collectibles depending on the player's fortune. |
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Regional Commissions The long road is unfinished; the only ending you see is a new signpost. An Encounter where the player can accept a Commission from three difficulties which merits various rewards of their choice when completed (explained below).
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Rogue Trader Neither an ally nor an enemy. Some people like to sit on the fence. See Rogue Trader for more information.
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Fortituous Opportunity The lighthouse has fallen. People open their bags, delivering light for each other. Can exchange a Collectible with a different one. Otherwise, the player will receive 4
.
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Emergency Dispatch A lantern cannot illuminate without oil, a fincatching boat cannot sail without fuel. Do not underestimate the importance of adequate supplies. Can send off one Operator until after the die roll at the start of next floor, at which point the Operator will be automatically promoted (if not already) and suppresses the Rejection they had (if they have one) in addition to receiving some Originium Ingots. Otherwise, the player will receive 3
.
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Wander Into Wonderland And thus the bard sings: "Oft are desolate fields and floral gardens neighbors; oft is losing one's way but another adventure." Can enter the secret floor. Otherwise, the player will receive a random Collectible.
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Dense Fog There's something in the mist, but you cannot see anything... The node cannot be identified until it becomes accessible.
Nodes can only be in this state while the player is hearing the Echoes: Adaptation Call of We Many. |
Upon entering a Regional Commissions, the player will be presented with three Commission options, one from each difficulty: simple, mid-tier, and tricky, and accepts one of them. Once accepted, the Commission's progress can be tracked from the navigation menu.
Once a Commission is completed, the player can claim its reward by selecting its progress check button, where the player is given three choices of rewards to be claimed; normally the player can only claim one reward for each Commission, but using 
Mind Over Matter Squad with the "Sensibility" Cognitive Shaping node unlocked allows the player to claim a second reward.
The more difficult the Commission, the more valuable its rewards.
List of simple Commissions
| Commission | Rewards |
|---|---|
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List of mid-tier Commissions
| Commission | Rewards |
|---|---|
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List of tricky Commissions
| Commission | Rewards |
|---|---|
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 1F: Sunshine Coast
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The waves pass the steps devoid of footprints, the foam soaking the bricks at the base of the wall. This is a form of clamorous silence, where the land and the sea join in harmony. Unfinished Simulation The wind and waves wrap around your ankles, gently pulling you away from the land and into its embrace. |
 2F: Offshore Island
|
This island is not far from shore, but nobody knows how it came to be. The ocean wind pushes ajar the doors of the buildings here, light and shadow interweaving... Go on–enter, and take a look. Unfinished Simulation A spark of light inside a building is the best way to lure in visitors. As long as they take the bait, this isolated island far from civilization will still be able to feast. |
 3F: Raging Billows
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The sky darkens, those dangerously beautiful tides shimmering as they gradually become clearer. They quietly spread towards the mouth of the cave on the island, right at our feet. Unfinished Simulation The water rises, sealing the entrance to the cave. The tide stretches its limbs, grabbing onto its prey. |
 4F: Secret Hotbed
|
Deeper inside the cave, the moss creeping along the rock walls begins to proliferate wildly, covering the entire surface. Life does not require the light of day to thrive. Unfinished Simulation In places devoid of light, survival is the sole impetus of life. Should you fail to come to terms with this reality, then you will be completely devoured by the life here. |
 5F: Sacrosanct Cave
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The ocean current abruptly veers here, the sound of the rushing tide resembling that of crying. They seem to have been deliberately avoiding this place... Apparently, nature is not the only inhabitant here. Unfinished Simulation A true predator never needs to take action. The invisible helping hand of curiosity will naturally push the next meal into its mouth. |
 6F: Deep Sea Woodland
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The sound of plants breathing resonates at the same frequency, and countless motes of fluorescent light rise amidst the forest like a galaxy hanging upside-down on the ocean floor. What kind of soil could give rise to such a wondrous grove? Unfinished Simulation You applaud nature, but nature only finds you to be noisy. Nevertheless, it will still take you in, whether you agree to it or not. |
 Secret: Indigo Cradle
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Time. Time. Time is their sustenance. Across lengths of time immeasurable, the cerulean branches continue to linger and grow, and thus does life sway and unfurl. This place has everything, and nurtures all. Unfinished Simulation Everything around you is a vibrant cerulean, and you can no longer find any way to escape. The age of plants is boundless, and you have reached the end of this futile search. |
| Additional information | |
|---|---|
| |
To enter the secret floor (Indigo Cradle), enter Wander into Wonderland: At a Glance (which will only appear after the "Curiosity" Cognitive Shaping node is unlocked) and choose "Try to cleanse the nethersea brand" (costs 1 ), followed by "Maybe you can take care of some problems for your 'species'".
The Indigo Cradle has four nodes in the following order: Wish Fulfilled > Combat node > Combat node > Dreadful Foe: Avoid Unsafe Roads/Chilling Curse/Hunting Group
Call of We Many may be heard at an increased rate even if the player entered the Indigo Cradle before completing a run for the first time.
Once the Indigo Cradle is cleared, the player will be taken back to the floor where they entered it and proceed into the node succeeding the Wander into Wonderland it is entered from.
| Floor | (Emergency) Operation | Dreadful Foe | ||
|---|---|---|---|---|
| EXP | Ingot | EXP | Ingot | |
| 1F | 10 (12) | 2 (3) | – | |
| 2F | 12 (18) | 2 (3) | – | |
| 3F | 14 (24) | 2 (4) | 32 | 5 |
| 4F | 16 (30) | 3 (4) | – | |
| 5F | 25 (38) | 3 (5) | 52 | 7 |
| 6F | N/A (45) | N/A (5) | The Dreadful Foe ends the run once cleared | |
| Secret | 29 (38) | 3 (5) | 52 | 5 |
| Additional information | ||||
| ||||
| Operation | EXP | Ingot |
|---|---|---|
| Indecisiveness | 3 | 1 |
| Supervision Site | 5 | 2 |
| Right in the Kisser | 9 | 4 |
| Tail Between Legs | 13 | 8 |
| Fishing in a Dry Pond | 14 | 1 |
| A New Day, A New Duck | 14 | 6 |
| Fanatical Flames | 14 | 6 |
| "Joy" From a Box | 16 | 3 |
| See the Big Picture | 21 | 2 |
| Reality | 21 | 7 |
| Level | Req. EXP | Total EXP | Bonuses |
|---|---|---|---|
| 1 | – | 0 | – |
| 2 | 10 | 10 | Gains 4 and Hope cap +4
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| 3 | 24 | 34 |
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| 4 | 36 | 70 | Gains 5 and Hope cap +5
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| 5 | 40 | 110 | Gains 6 and Hope cap +6
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| 6 | 55 | 165 |
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| 7 | 65 | 230 | Same as Command Level 5 |
| 8 | 70 | 300 | Gains 7 and Hope cap +7
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| 9 | 75 | 375 |
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| 10 | 80 | 455 | Same as Command Level 9 |
| 11 | 80 | 535 |
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Command Level 11 can only be reached by using 
People-Oriented Squad with the "All for One" Cognitive Shaping node unlocked, which is added in Expansion II.
| Rank | Contract |
|---|---|
| A | All That Glitters Defeat 3 Chest Seaborn across all runs.
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| A | Deep-Pocketed Investor Invest a total of 30 .
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| A | Stop Crying! Defeat the Crying Thief 3 times across all runs.
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| A | The Duck Killer Defeat the Duck Lord 3 times across all runs.
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| A | The Ocean's Bloodline Hear a Call of We Many in a floor and clear it.
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| A | The Other Side of the Sea Complete a run with any ending.
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| B | Aquatic Paradise Enter 8 Downtime Recreations across all runs.
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| B | Born to be Flawless Clear 6 operations without losing Life Points across all runs.
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| B | Bring A Friend Recruit 8 Support Units across all runs.
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| B | Go-Getter Obtain 4 Tactical Props across all runs.
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| B | Life's Little Surprises Enter 24 Encounters across all runs.
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| B | Obstacle Overcomer Clear 8 Emergency Operations across all runs.
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| B | Seaborn Hunter Defeat 4 bosses in Dreadful Foes across all runs.
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| B | Skilled Negotiator Enter a Fortitious Opportunity.
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| B | Tulip's Helper Enter 4 Regional Commissions across all runs.
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| C | Battlefield Veteran Defeat 500 enemies across all runs.
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| C | Big Spendthrift Buy 10 wares from the Rogue Trader across all runs.
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| C | Broad Connections Recruit 10 Temporary Recruitment Operators across all runs.
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| C | Cautious and Deliberate Complete 2 Regional Commissions across all runs.
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| C | Deep-Sea Diver Clear 15 floors across all runs.
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| C | Elite Handpicker Promote 10 Operators across all runs.
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| C | Exploration Enthusiast Enter 50 nodes across all runs.
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| C | Hope Distributor Spend 75 to recruit Operators across all runs.
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| C | Ingenious Strategist Raise the Command Level 15 times across all runs.
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| C | Locksmith Use 10 across all runs.
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| C | Operator Assembly Recruit 35 Operators across all runs.
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| C | Originium Broker Spend 100 across all runs.
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| C | Playing with Fate Make 20 die rolls across all runs.
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| C | Relic Relisher Obtain 35 Collectibles across all runs.
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| Precious Days |
|---|
  In the end, the goal envisioned from the very beginning is brought to fruition, and the two creatures, from Seaborn to human, are ready to usher in a new tomorrow after a full meal. Everyday life is the greatest joy that fate bestows upon the living, and indeed, peaceful days are the most joyous of all.
|
| Condition |
| Simply clear the 5F Dreadful Foe, Curse of Cognition. |
| Age of the Silence |
|---|
  In silence the terrible waves rise, and within it disappears the knight's howl. The calamity that once destroyed Iberia surges again, and this time it shall not recede.
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| Condition |
Complete a run with the Precious Days ending and do the following steps in a single run:
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| Price of Peace |
|---|
  The conflict over the "Firstborn" comes to an end, and the human Him triumphs over the inhuman Him. The Silence fades, the tides retreat, and the being known as Mizuki shall never again return to the land.
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| Condition |
Complete a run with the Age of the Silence ending and do the following steps in a single run:
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| Stella Caerula |
|---|
  The descendants of evolution rise from Terra's tides, break through the skies, and fly towards the endless sea of stars. There is no more pain, no more suffering, only the joy of a new life.
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| Condition |
Complete a run after Caerula Arbor's Expansion II and do the following steps in a single run:
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When a Caerula Arbor run ends, the Data Rollback (which can be skipped and viewed again from the result screen) will be shown (after the ending if the run is completed), which highlights the player's actions throughout the run as follows:
Originium Ingot spent there.
Breath of the Tide, showing the amount of operations where the Tide-Hunt Knight appears.After the Data Rollback ends with the message "Rollback Complete", the player will be taken into the result screen showing the summary of the run as follows:
| Completed | You, Dr. {nickname} used the {Squad} and spent xx hrs xx min xx sec starting on yyyy/mm/dd hrs:min:sec Witnessed the {ending} |
|---|---|
| Failed | You, Dr. {nickname} used the {Squad} and spent xx hrs xx min xx sec starting on yyyy/mm/dd hrs:min:sec Ended your journey at {floor name} |
| Floors cleared |
The secret floor is counted as one floor should the player enters and clears it.
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|---|---|
| Steps taken | 1 × no. of nodes entered |
| Normal battles fought | 10 × no. of Operations cleared |
| Operators recruited | 2 × no. of Operators recruited |
| Items obtained | 5 × no. of items obtained (Collectible; those traded away in Fortituous Opportunity still counts) |
| Boss battles fought | 30 × no. of Dreadful Foes cleared |
| Elite battles fought | 20 × no. of Emergency Operations cleared |
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Drifting Cache, but only 36.17% have actually managed to open it (by rolling a 5 or higher). in Caerula Arbor's Prospective Investment.
Support Squad is the most picked Squad.
Guard Rec. Voucher, 
Medic Rec. Voucher, and 
Supporter Rec. Voucher) is the most picked initial Rec. Vouchers option. is the highest amount of Originium Ingots ever withdrawn from Caerula Arbor's Prospective Investment in one instance. Breath of the Tide has been obtained 1,361,102 times. have been spent, where:
Mysterious Cave is an 8-bit minigame that can be accessed in the "Story Press" section of the Mizuki & Caerula Arbor website.
The player has to throw a die similar to the in-game mechanic to determine their Strength, Intellect, Luck, and Destiny at the beginning. Upon setting up, player will then have to throw the die again to determine Mizuki's moves until reaching a jellyfish-like object, at which they receive a mini collection into the Inventory (a bag pack icon). The goal is to reach the Giant Safe, where they will be given a chance to select which collection to be exchanged. The player with the most collections win.
In the Water Logged Record Player section of the Mizuki & Caerula Arbor website, there are four emblems representing the four Firstborn; when pressed, each emblem plays a short voice clip of the Firstborn reciting the quotes of Calls of We Many, shown below.
| GROW (Growth) |
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| SUBSISTING (Survival) |
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| BREED (Reproduction) |
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| MIGRATION |
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Assault Co-op Rec. Voucher, 
Fortification Co-op Rec. Voucher, 
Ranged Co-op Rec. Voucher, or 
Sabotage Co-op Rec. Voucher
Elite HR Dispatch Letter
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Resourceful Squad
