Fujishima Yui is currently a university student. This summer she went home, but her parents went on a trip abroad, and not knowing where to go, she asked to stay at her high school teacher's house.

Fujishima Yui's large breasts, combined with her never wearing underwear, were constantly in front of the teacher's eyes, making it impossible for him to resist! The two continuously had intimate moments together until Fujishima Yui's parents returned...