A self-proclaimed F-ranked brother is going to reign supreme at the top of the school where he is rated by the game? (Volumes 1-10 the latest volume)

Publisher: KADOKAWA/Media Factory
Author：sorani,mikawa gosuto,nekomedal
Size: 128mm x 182mm
Number of books：10
Language: Japanese
Category: Seinen Manga,Cartoon
the latest volumeRelease Date: 2024-05-23

Synopsis:
Shishio Academy, the most prestigious school in Japan, attracts only the elite in every field: academics, athletics, and family background. However, in reality, it is a school of the weak and the strong, where everything is evaluated based on the results of a game.
It is a world of carnage where only the absolute strongest - the lions - can survive. Although he is a legendary undefeated player in the games of the underworld, the main character, Kohren Shushiro, who wants to lead a normal, trouble-free life, fails to pass the entrance examination and is given the lowest rank of "F" as he had planned.
However, things change suddenly when he is reunited with his blood sister, Karen, who loves her brother with all her heart. And when the "malice" of the school attacks Karen, Kohren shows her true ability..!