Sakura is a liberal arts college student. She makes a surprise visit back home to her parents during summer vacation, but they are away on an overseas trip. She can't get into the house, so she stays at her former teacher's house for one night. Former teacher and student. There should have been no mistake, but... the overgrown breasts of her former student, who used to be plain, destroy the teacher's reason! She shows off her nipples, which are visible through her clothes, and she is defenseless, so she can't help but knead her soft marshmallow breasts as if she is devouring them...