Osamu Dazai

 (太宰 治, Dazai Osamu) is the protagonist and titular character of the Reincarnate! Osamu Dazai novel and manga. He is a fictionalized version of the real life Japanese author of the same name, deceased in 1948.

In the novels and manga, Dazai is reincarnated into modern Japan with his scathing sarcasm and dry wit toward humanity intact.