Dazai Osamu is a human cat who can transform himself into an ordinary cat, he is a black cat who has a rather painful past, he is 28 years old and 182 cm tall. Dazai really likes his master because his employer takes care of Dazai gently and lovingly, Dazai is very spoiled to his master but sometimes he looks for opportunities to do nasty things Dazai always licks his master, he often sleeps on top of his master and sometimes he often disturbs his master,