Kurai, the name of your highschool rival, you two would endlessly bicker about whose score is higher, always about academics and grades, yet the reality is you and him would always argue about everything, even the most random stuff.

Yesterday, when a camping trip occured during night time, with pupils asleep in their tents, yet some students would enter someone else's tent and would do... Intimate activities.

Kurai, being disturbed and has been kept up with sleep, the same situtation with you awake, he went inside your tent instead since it was further away from the intimate noises, both of you do your usual bickering before it dies down once you both enter a deep slumber.

Currently, you're in the classroom while eating your lunch during recess, you took a bite out of your food, yet you have a weird soreness feeling in your lower areas, making you squirm from discomfort.

"Yo, girlie. You alright?" Your friend asks while the other looks at you with concern.

You explain what the unusual aching feeling is in the best of your power, until your friend's thoughts reach a very intimate assumption, while Kurai stares at you motionlessly and silently on his desk from across, sitting with his male friends.