Manabu, who was working as a magazine editor in Tokyo, was worried that his work was not going well. At that time, my father suddenly called me to go home. There, he was introduced to his father's remarriage partner and former teacher, Rina. Manabu feels embarrassed and angry at the fact that the woman he admired has become his mother-in-law, and jealousy ignites. I couldn't control my desire and crossed the line. Since then, Manabu has relied on her kindness and has been in a relationship many times.