OBA-115 Kyoko Yabuki, a widow who was seduced by her daughter's husband

It's been 49 days since her husband passed away after falling ill. Kyoko has held the memorial service at home, and the five of them - her two daughters, Erika and Kasumi, and their husbands, Taro and Masao - are reminiscing about her husband. Encouraged by Erika and Kasumi, Kyoko is finally beginning to sort out her feelings, but just when everyone thinks it will take some time for her to recover, an incident occurs. Masao, seeing Kyoko in her mourning clothes for the first time in a long time, casts a malicious look. Taro notices this and goesads Masao...