四月一日

Affiliation: The Association
Bug: Earthworm
Ability: Revival - Reset. Resurrection ability that automatically triggers on the user's death, returning her body and mind to a previous point in time.

A silent and withdrawn girl, Watanuki mostly follows Rokusaidou's lead and holds unwavering loyalty towards her. Much like Rokusaidou, Watanuki shares a similar interest towards bugs and their research.