Hikari, a housewife who works part-time at a convenience store, is attracted to Ai, a university student who often works the same shift as her, and they end up spending the night together. Hikari is addicted to the youthful urges she has always wanted, and the best sex with a big dick. She gets into a frenzy of sex, getting creampied over and over again, even during 15 or 30 minutes of her break at work...