Cohabitation | 同居生活 | Due to his father’s philandering, his biological mother leaves home, and Makoto is raised by his father’s lovers. Despite this, Makoto, raised upright and upright, cherishes his girlfriend, Emiri, and vows never to become like his father. Meanwhile, Emiri, while sharing a love affair with Makoto, struggles to define herself as bisexual or homosexual.