A "nerd" who doesn't stand out in class has a classmate, Hikaru Kuroda, who often comes to his house to read manga. Suddenly, Kuroda brings along a scary classmate, Ria Saion.

"She's telling you to do what you always do to Hikaru."

At first, the nerd is too nervous to understand the situation, but gradually becomes more excited, only to be given up on with "I didn't get anything out of this..."

"Saion-san... I, I can still do more!" The nerd's rampage begins now!