Chitose Yuki takes in her nephew Takuma, who has come to Tokyo to study. As a widow, his arrival offers her a welcome escape from loneliness. However, Takuma secretly harbors a deep desire—to lose his virginity to Aunt Chitose. When she discovers his feelings, she gently accepts his wish, embracing him with her big tits and warmly guiding him into a mutually consensual, intense relationship. As their bond deepens, Chitose herself becomes aroused by his young body, growing increasingly passionate and lustful. A heartfelt, emotionally charged story filled with warmth and desire.