They don't talk to each other at school, but this slender girl with a short hairstyle is, actually the protagonist's girlfriend♪
After school, as usual they head to the house of the one whose parents are away, and have sex there while still wearing their uniforms!
They only have a limited amount of time to do it, so they end up wanting to make each other feel good as much as they can in that short time☆

Kikunosukemaru-sensei draws x-ray shots depicting lots of pussy penetration and stroking! All-out youthful sex that will fill her a cloudy white☆

(Source: DMM)