(from ebookjapan):

SF manga master Leiji Matsumoto depicts the checkered life of a dull, poor young man who lives in a ramshackle apartment where hangings occur frequently in this philosophical work.

Hajime Demodori comes to a precipice to commit suicide, and is persuaded by a beautiful woman and an avec he met while eating his last supper that he should not die. The next day, Hajime wakes up and looks for them, only to find three wills left behind...?