Anime Crossover: Clearing the Weird with Mai-Senpai

I transmigrated into a crossover world. Gokou Ruri is my little sister, and Erin is the classmate who sits beside me.

Then I suddenly received a little note from Senior Mai. I thought it was a love letter confessing her feelings, but it turned out to be the eerie beginning of everything.

Welcome to the world of strange tales. Please follow the rules below.

Rule one: Classmates should be pure and friendly with one another. Please maintain proper relationships with the opposite sex.

Wait, isn't this the boys' dormitory?

The roommates who came out of nowhere are driving Lu Chen crazy.

"Please, you two, could you wear skirts that are a little longer?"

"Wash your own socks. Could you stop stuffing them into my bedding?"

"Stop rubbing against him! He's already getting hard!"

On one side are rules that mean certain death if broken. On the other are girls who keep finding new ways to tempt him. Lu Chen has a serious headache!

Later characters will definitely include Xuexia Xue Nai, Xiaoniao Youliuhua, Chunyeyeqiong, Shiqi Kuangsan, Xingye Ai...

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.