A few years into their marriage, the happily living Shiraki couple had a rōnin student, Kawai, move in next door. Kawai fell in love with Yuko at first sight and confessed his feelings to her, despite her being married. Naturally, Yuko rejected him… One day, smoke started billowing out from Kawai's house. Yuko rushed over to put out the fire… Kawai collapsed, saying, 'I can't forget you, Yuko.' Feeling that she couldn't focus on her studies like this, Yuko left a fake note and dinner for her husband and went to Kawai's place…
