Mysterious Reagent

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The Mysterious Reagent is an event currency in Arknights.

Item description
The latest innovation of Rhine Lab's Energy Section. Collect enough and exchange with the Laboratory Recycling Depot for goods.

Very sensitive to neural activity, and can replace some of the functions of traditional Arts Units. In the Rhine Lab Defense Section's laboratory supplies management handbook, this test regent's hazard and confidentiality levels are both listed at maximum.


These reagents of an unidentified, dangerous substance – implied to be the Transmitter – can be obtained and exchanged for various items at the Laboratory Recycling Depot during Dorothy's Vision.


Mysterious Reagents are awarded as the first clear reward of all DV operations (except DV-S-1 and DV-S-2) and the regular drop of Test Site operations, and from Data Collection missions.