VANDR-105 Ubuma girls who have had their first menstruation are developed into eroma girls under the guise of sex education by a playcon teacher while playing their voices in the library.

The target is students who have reached their first menstruation... A lolicon teacher gives sexual training to students with undeveloped bodies in the school library. Teaching how to cum with a decachi ○ port from loss of virginity, and spree blaming girls even though there are other students. The girls stifled their voices and complained, "Teacher...it hurts..." in a voice that no one could hear, but they even got vaginal cum shot...