Haruka and Wakana have to don their bikinis
Eiko has an unsatisfying relationship, and finds fulfillment within the arms with the more youthful Mitsuo. Following a passionate spell between them, Eiko feels she will't continue to keep living this way and breaks up with him. Two a long time afterwards, Eiko's younger sister, Yuiko is happily engaged to marry, and introduces her fiance to Eiko.