A couple who have just started living together and her best friend make a close trio. The girlfriend is going on a business trip overseas and will have to leave the apartment they share, so as a sign of her love, the boyfriend promises to abstain from sex for a month and a half while she is away. A month after she leaves, her best friend Moe comes to visit the couple...The boyfriend, with his sexual desire at its peak, approaches his girlfriend's cute best friend, and from there they begin a nonstop physical relationship that releases his sexual desire. A passionate drama Moe Amatsuka.