An honor student is tasked with teaching a girl with terrible grades, and finds she will require much more study time. After finding out she's a runaway, he has her live with him. Anyways, they learn a lot about anatomy...
The protagonist has an overactive imagination, and fantasizes daily about the ditzy prefect, Sumako. One day after school, the two are alone together, and she shares her troubles...
Gal group member Miku is much purer and inexperienced than her appearance suggests! One day, she loses a game of play rock-paper-scissors where the loser has to jerk a loner boy off! Miku doesn't know how to, but she's about to learn a lot...