Kasuga Shun

Editor Ohara-chan is at the mercy of the super popular genius manga artist Kuzumi-sensei's trashiness!

Tomoki, a high school student lived with his older sister. What happens when a normal boy has to put up with his sadistic but popular sister?

Demon Queen Abyss is worried… She's not able to defeat the Hero, considered the mortal enemy of the demons. This Hero is still an inexperienced young man—he should be easy to defeat! … However, the problem is that he, not knowing Abyss's true identity, considers her his “Master” and has become very fond of her…!?Producer & Supervisor: studioHEADLINE

She is a famous idol. On the other hand, I am just a nerd. We have to keep our relationship a secret.

"I" (Boku) love math. Just after the high school entrance ceremony, "I" meet a beautiful girl: Milka. Milka is a mathematical genius. She gives me many maths problems, she shows me many elegant solutions. Milka and I spend a long time by discussing maths in the school library. One year later, I meet another mathematical girl: Tetra. Tetra is one year younger than me, and asks me to teach her mathematics. While I teach her, she begins to understand mathematics and gradually to love its elegance. In this second volume (series), we talk about Pythagoras' Theorem, Elementary Number Theory, Group, Ring, Field, and Fermat's Last Theorem.