Eru-chan, a petite beautiful girl who aims to be a junior idol. Apparently, he was working part-time without telling the school. This is something that the teacher has to teach sexual activity. The world of idols is very tough, so the teacher will teach you a lot from scratch. At first, Eru-chan was confused and reluctant, but gradually accepted the teacher. Teacher, I was so happy that I did a lot of things that I shouldn't do. The reason why I put it inside without wearing rubber is because of the teacher's love. Did you fall in love with the teacher? * There are no performers under the age of 18 in this work.