No like we have 5 canon instances of Dazai nullifying corruption.
Sb post flags death- Dazai nullifies Chuuya, picks him up by the arms and carries him to the Old World where he more or less drops him so he can see Albatross one last time before he dies.
Sb post Guivre- Dazai nullifies Chuuya by catching him in his arms AND holding him close when he is weirdly sweet and jokes about not having a pen to draw on his face.
Dragon head incident- Dazai nullifies corruption by touching his face and then pulls his head into his lap and even puts his hand on his head or something.
Lovecraft fight- Dazai grabs Chuuya's bare arm and folds his clothes, stitches a dumb little note into his jacket and hightails out of there.
Dead apple- Dazai nullifies corruption by holding his face, then keeps holding his face and once again pulls his head into his lap.
at what point of their relationship would akutagawa accept that being w/ atsushi just means he has to get used to being bitten semi regularly and /not/ in the sexy way
or would that be one of atsushi's selling points to begin with