A young husband and his much younger wife begin their married life together, but a fundamental problem quickly emerges. Although she is physically an adult, his wife's mind remains that of an innocent child. She has no concept of sexual intimacy and treats their relationship with the same pure, naive curiosity as a child. The husband finds himself in a delicate position: he cannot force himself on her, yet he struggles with how to gradually introduce her to the physical side of marriage. Every innocent action she takes—whether stretching, changing, or simply being unaware of her own body—sends his restraint into chaos. The story follows his clumsy, often comedic attempts to navigate this awkward situation, as well as her wide-eyed, uncomprehending reactions. Along the way, they both learn about love, trust, and the meaning of partnership, culminating in a shared effort to bridge the gap between her childlike worldview and the realities of an adult romantic relationship. The narrative leans heavily on ecchi humor and sweet, awkward moments, set entirely within the domestic routine of their newlywed life. The central arc tracks the husband's ongoing struggle to teach his wife about sex without breaking her innocence, leading to a gradual, mutual discovery of physical and emotional intimacy.