Sayaka has moved to an apartment after marrying her longing cousin Tomoaki. Tomoaki's friend also lived there as a share house. Despite feeling a little uneasy about her, Sayaka dreams of her happy days with Tomoaki. One day, when her husband is absent, her housemate man takes advantage of her Sayaka's weaknesses and demands her plump body. Sayaka, who has forgiven her reluctantly, suffers from her guilt towards her master. But she doesn't know if she knows her Sayaka's chest, or her man's desires don't stay. Her demands escalated further, and eventually ...