"Miyu," preparing for exams, seems to be doing poorly in school. However, she shows no anxiety, spending her days playing games. Her worried mother seems to have hired a tutor. That's why I came to this house as a tutor. I can talk to vibrant, youthful schoolgirls, and I can earn money too—it's truly the best job. Wow! I'm so lucky this time! Cute face, and big breasts. "Ah~ Homework? Too much trouble…" But her attitude is a bit bad. "Well, I'll lend you my breasts, consider it homework." What!? And so, an unusual relationship began.