"Mayu" lives with her husband's parents. - Coincidentally, my father-in-law was my teacher when I was at ●school. - Mayu, who had more than respect for her father-in-law when she was a student, devotedly cared for him. - Mayu literally puts her body on the line to cheer up her father-in-law, who is in a state of weakness. - Before she knew it, Mayu's longing for her "Sensei" heated her body, and she fell into a pleasure she had never felt before.