Mushoku No Sonzai 無色の存在 (Colorless Existence)

Nobiyuki Susumu is a high school boy who is interned to a Mental Ward after a failed suicide attempt. One day, Susumu is given a strange journal. Upon opening the journal, Susumu meets Ren, an Angel with a comical personality that took the form of a journal. Upon learning about Ren's true abilities, Susumu's life is c...