Upon marriage a wife and husband were virgins. They steadily improve their sexual skills day after day. After six months of marriage they are having sex every night. The wife, however, feels things are becoming stale given her husband's lack of new maneuvers in bed. One day the sister-in-law comes to meet her brother's wife and she is having relationship problems with her boyfriend. The sister-in-law insists that the man will get bored if a woman is always available for sex prompting the wife to restrain herself for three weeks.

Cast

Kirara Asuka

Jun Onoda

Hidehiko Emi

Koichiro Matsuzaki

Yuri Morishita

Yura Onoda

Aimi Nakamura

Makie Sugiyama

Hikaru Okada

Makoto Onoda

Momoko Tani

Kyoko Omiya

Mika Kubota

Makie Sugiyama

Hideki Nakamatsu

Manabu Okahama

Takahiro Ochi

Yosaku Inagaki

Shôgo Fukushima

Yosuke Inoue