After being dumped by his first girlfriend, Sato falls into deep despair and struggles to move on. His aunt, Haruka, tries to comfort and encourage him as he drowns in heartbreak. Unable to understand women and losing confidence, Sato remains despondent. Seeing his pain, Haruka makes a bold decision—to offer her own body to help him heal. Taking his hand, she guides him, letting him touch her, allowing him to experience the woman he's secretly admired for years. As Haruka gently caresses him with pure affection, Sato awakens to his true feelings, embarking on a new path through their forbidden intimacy.