One-sided Love Triangle

Riko, an English teacher, and Kyousuke, a school nurse, have built a quiet domestic life together over the past year. Their comfortable routine is disrupted when Kyousuke’s cousin returns to Japan after studying abroad and moves into their shared home. Although Riko feels uneasy about the sudden change in her living situation, she finds it impossible to voice her discomfort upon seeing how deeply Kyousuke cherishes his relative. On the day of the cousin’s arrival, Kyousuke is unexpectedly delayed at work, leaving Riko to greet him alone. To her profound shock, the young man standing before her is Mizuki—a former student she tutored during her college years who had once openly confessed his romantic feelings for her. Deeply unsettled by this revelation, Riko attempts to maintain her composure by pretending she has no memory of that past confession. However, Mizuki is far from willing to let history remain buried. With intentions of his own, he quietly sets a new course of action, threatening to unravel the fragile peace Riko has worked so hard to maintain in her relationship and her home.