August 27, 1969
Appeared in "Form Shonen Champion" (Akita Shoten Publishing Co., Ltd.) as a series of complete stories

Kuma Ryuichi cannot decide whether he should go to college or become a cartoonist. One day, an old woman appears and advises him to decide by flipping a coin. She says that if the occupation he has chosen does not please him, he can start all over only once with another profession by visiting the octagonal mansion. Ryuichi chooses first to become a cartoonist. He is successful without a hitch for a while, but then comes up against a brick wall in his creative ability. Thus he visits the octagonal house, and starts a new life as a boxer this time. He gets bogged down again, however, and tries to go back to being a cartoonist, but then...