Shiomi Jun, on the brink of death, is unexpectedly saved by his nephew, Kashima Ao, a high school student he hasn't seen in years. Despite Jun's emotional wounds and his initial reluctance to accept help, Ao showers him with affection and kind words. Jun, overwhelmed by this unexpected kindness, struggles to cope. However, Ao's unwavering and obsessive love begins to envelop Jun, drawing them into a complex, codependent relationship where both seek solace in each other.