During their student days, best friends Yuki and Rara had drifted apart after graduation. However, when Rara's husband transferred to Tokyo and moved into a new home next door to Yuki, they happened to reunite by chance. Unfortunately, Yuki had married a member of an anti-social group and was now tattooed all over her body, living as his sexual slave. Even worse, Rara's stunning beauty caught the eye of Yuki's husband, who began scheming to turn her into his own personal sex slave just like he did with Yuki...