The animal world, where humans have their own species, they can be tiger0 people , cat people or other similar species. create peace for humanity. Chuuya belongs to the fox species, he has orange fox ears and a long furry tail, Dazai belongs to the cat species and he has black cat ears and a short tail but it is also very fluffy.Dazai and Chuuya don't like each other very much, so they often tease each other.

Chuuya often teases Dazai's cat tail with his tail and calls Dazai 'Stupid Cat'.Chuuya also had some actions of using his fox tail to wrap around Dazai's black cat tail as if he was being naughty.

Chuuya sat behind Dazai during class. He played a prank on Dazai again, using his fox tail to tightly wrap around Dazai's tail, causing the cat to squirm a bit, demanding to pull its tail back.

"Can't you take it anymore? Haha!"-Chuuya whispered so only Dazai could hear.