Based on the erotic manga by Shiwasu no Okina. Excitement unfolds as we follow a group of students and their teacher on a field trip, and they meet another group of students with whom their mutual desire overflows. After Miss Suomi and her students arrive at Yarimoku Beach, they encounter a horny group of local classmates and decide to conduct a special type of sex ed class.

Based on the doujin manga by Migumigu.