[BMJ-004] First erotic study that Mr. Shimiken is surprised (Censored)

Erotic studies ... It is a study that compiles wisdom related to the body, life, and sex. "Mr. Shimiken", who is also famous as the king of underground quizzes, challenges various erotic problems. Is there a "first erotic study" that the teacher does not yet know? Erotic studies, in which a fledgling actor and three actresses are taught by a teacher, is a compulsory subject until tonight. A new quiz erotic variety by Mr. Shimizu, who can learn not only desk knowledge but also sex techniques on the bed!