Saki (Kusanagi) has to take care of her nephew Shinya because of her sister's husband's illness. Saki was caught between her husband and his younger brother who couldn't stand arguing every day, and she was spending days feeling stressed, but she couldn't stand the pain anymore. The distance between the two, who are away from their daily lives and enjoying a momentary tranquility, rapidly shrinks. Then, without either of them, they devour each other's burning bodies and finally make a forbidden vow...
