JUR-840 My mother-in-law will teach you a grown-up kiss… A voluptuous stepmother who steals the lips and innocence of her naive husband’s child, Marina Shiraishi

Marina marries a man with a child and begins a new life as a family of three. Her husband’s son, Satoru, has never known a mother’s love and keeps his distance, but after feeling Marina’s warmth and care, he gradually begins to open up. Then one day, Satoru, who does not understand proper boundaries between parent and child, asks Marina for a kiss. Awkwardly and forcefully, he presses his lips to hers, stirring Marina’s maternal feelings to an overwhelming degree. As he eagerly pushes for a more intense kiss, Marina gently guides him, saying, I’ll teach you how a grown-up kiss should be.