After half a year since her husband passed away, Yuna ended up staying at her in-laws' house. At the in-laws', her brother-in-law was on an overseas assignment, and only her sister-in-law, Yoshiko, lived there. Yoshiko greeted Yuna with a smile. Two beautiful married women living together… That night, Yoshiko suddenly kissed Yuna. Although she refused, Yuna found herself aroused by the memory of Yoshiko's lips. Yoshiko too harbored further desires for Yuna. Yes, when Yoshiko married into this family, her mother-in-law had taught her the pleasures of lesbianism…
