Ayano was heartbroken and unable to recover after losing her son. The one who supported her through it all was Ryou, her son's best friend. Always kind and warm, Ryou would visit her home, comforting and encouraging her, gently healing her wounded heart. Touched by his tenderness, Ayano gradually found herself falling for him, drawn in ways that surprised even herself. Though she hesitated, thinking, "He's my son's best friend...", she ultimately gave in to her uncontrollable feelings and became intimate with him.