Nagusami Gibo Ningyou

A young man named Takuya lives alone after his mother's death, struggling with loneliness and grief. His father remarries a woman named Yayoi, who moves in with him. Yayoi is kind and caring, but Takuya's feelings toward her become complicated as he starts to see her as a substitute for his mother. The tension between them grows as Takuya's repressed desires surface, leading to a forbidden relationship that blurs the lines between familial love and lust.