Karen Yuzuriha will make a special appearance in this wildly popular love story for youth in the OPPAI list! I'm a cherry boy, and I just got my first girlfriend... but I don't know how to date a girl! When in doubt, I need to ask Karen, my childhood friend, what I should do! And then... 'First of all, maybe you should let me turn on your cherry boy?' What an unexpected suggestion! I don't want my new girlfriend to know that I'm a cherry boy, and since I don't know how to have sex, we decided to start practicing! And then, after getting blown, giving her cunnilingus, and practicing my creampie play with her, I finally realized the truth... I... I love Karen!