AU where Dazai is high school math teacher Kunikida’s cat. Except that he gets away with everything because Kunikida, unfortunately (?), has a soft spot for cats.
Atsushi the high schooler (and Kunikida’s neighbour) loves his grumpy cat Akutagawa, and Aku only stays with sushi so his human can Serve him.
(Not shown: Chuuya, the other neighbour, is a broke college student working part time who positively h a t e s Dazai. “No offense Kunikida-san but your cat is definitely trying to murder me. And trying to get me to murder him.”
Just to clarify, Dazai is usually found in front of his motorbike before he starts it up. Chuuya is considering actually running over him one day.)
Toad's Cave 