An opportune salaryman moves his family into a model mansion for 12 months; unfortunately, they must allow prospective buyers to trek through their home during business hours.
Hiroshi (Tatsuo Umemiya) has the biggest penis in all of Japan and everyone who touches (or is touched by) it, is blessed by good fortune. After buying his sister a washing machine for her wedding, he travels to Tokyo, where he must help his friend Masa out of a half-million yen debt. Among other hijinks, he becomes a penis god in the process.
