omegachuu who has the most painful and feral heats after dazai leaves (they were bonded despite what you choose to think Dazai’s second gender is in this) and just goes on a rampage the first heat he has after dazai leaves bc the lab messed him up a bit and made his heats violent and just basically making him kind of stereotypically alpha rut mode instead of the usual “need to be bred” omega mode, and Mori just opts to have him shut into some kind of anti ability cell while he’s in heat to limit the injuries (and casualties)