Satoshi is irresistibly drawn to his mother, Yuri, whose mature grace and affection have long stirred secret desires within him. Overwhelmed by his deepening passion, he confesses his forbidden love. Yuri, torn by her own lingering loneliness and suppressed urges, surrenders to his ardor. They share a night of intense, intimate communion, exploring each other body and soul, their connection transforming into a bond as raw as it is tender.