No Longer Human is a Japanese novel written by Osamu Dazai. It tells the story of a young man named Yozo who struggles with feelings of alienation and detachment from society. Yozo puts on a facade of cheerfulness and humor to hide his true feelings of emptiness and despair.
Throughout the novel, Yozo's self-destructive behavior and inability to connect with others lead him down a dark path of addiction and mental illness. He constantly feels like an outsider, unable to find his place in the world.
No Longer Human explores themes of identity, mental health, and the search for meaning in a world that seems indifferent to Yozo's suffering. The novel is a powerful and poignant reflection on the human condition and the struggles we face in trying to find our place in the world.