Stepmother Teaches You How To Kiss Like An Adult..." Fertile Mother-in-law Who Takes The Lips And Virginity Of Her Novice Husband's Stepdaughter, Mariko Furuto.

Mariko decided to marry a man with a son who refuses to go to school. Her husband's son, Yusuke, couldn't accept Mariko as his mother, keeping his distance even while living together. Wanting to deepen her bond with Yusuke, Mariko urged him to let her support him as family and a mother, and Yusuke gradually began to open up. However, Yusuke still wouldn't go to school, and when she asked, he told Mariko he'd failed in a relationship. In response to Yusuke's request to learn about a woman's body, Mariko gently guided him, saying, 'Mommy will teach you starting with an adult kiss...'