Jun Ichijo is your average high school student.

However, because he was a loner and extremely bored, he spent his lunch breaks doing nothing but studying.

Thanks to his efforts, his grades improved, and he was content with his solitary life, but...

"Nishishi... hey, virgin, teach me how to study again~♪"

"Shut up, bitch, make it quick today."

"Yay!"

One day, he ended up having to tutor Karen Tachibana, a popular blonde gyaru who was the center of the class.

A loner during lunch breaks, but studying just the two of them after school... This double life continued.

Ichijo-kun, who is a bit tsundere but very caring.

Tachibana-san, with a genuine smile and a mischievous streak.

After various things happened, the two of them grew so close that everyone around them cringed.