"Unexpected: Love Story in Maison Ginseiso" explores the dramatic downfall and unexpected romance of Koichi. Once at the pinnacle of his career, he suddenly loses his elite job and his wife serves him divorce papers, leaving his life in shambles. He finds himself taking on a new, humble role as a caretaker at a boarding house.
His new reality brings him face-to-face with Itsuka, a resident of the very same boarding house. Their paths have crossed before, leaving Itsuka with a deep-seated hatred for Koichi. Seizing the perfect opportunity, Itsuka begins to use his vulnerable position to exact her long-awaited revenge. However, amidst their bitter rivalry and constant skirmishes within the boarding house, an unforeseen connection starts to emerge. What begins as a turbulent dynamic driven by past animosity slowly transforms, paving the way for a truly unexpected love story between them.
Other names: The Woman Who Wants to Kick the Man She Is Addicted to, Hamaru Otoko ni Keritai Onna, ハマるおとこにけりたいおんな