Story :  "It's not bad so keep doing that...?" --Yuto Takanashi is your average university student, but he has a worry he can't tell anyone about. That worry is that he is no good around women. On a certain day, he ends up alone in the school library with his classmate Hinano Saeki. Just like Yuto, she holds a worry concerning the opposite sex...!? "My body is too sensitive and I don't know what to do... so I want you to touch me until I'm used to it!" What a coincidence it is that Yuto, who wants to overcome his incompetence with women, and Hinano, who wants to fix her overly sensitive body, have similar desires. Yuto begins by touching Hinano's breasts, however she begins trembling just from having her nipples touched. Their training sessions soon move on from just touching Hinano's nipples to licking them, sucking them, and more in an aggressively escalating pattern. And then, when he finally gets to touching "down there" Hinano's body reacts in a way he hadn't seen until that point...!?