After losing her husband and mother-in-law, the widow finds herself alone with her father-in-law, crushed by loneliness and anxiety. Her heart begins to tremble at the gentle words of her brother-in-law, and the days of being forcefully taken by her father-in-law start to change. Amidst Akari Hoshino's passion and Shinkai Saori's inner turmoil, their relationship evolves into something new. The lingering emotions she once held onto are gradually released through her brother-in-law's warmth. Hidden desires buried deep within her soul eventually overflow uncontrollably, driving her into a frenzied urge to be fucked relentlessly.