Yuna and Yui, stepsisters with a close bond. Although they both had their own families and moved out, they returned to their parents' home due to dissatisfaction with their husbands. As they drank and reminisced about old times, the conversation turned to bathing together as children. Then, in their drunken state, the beautiful sisters decided to bathe together. Seeing each other's naked adult bodies, the sisters became aroused…
