Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
An academy game style brain battle where the strongest F rank can defeat the strong opponents! Koren Kushiro who entered the academy with the lowest evaluation F rank on purpose at the lowest evaluation F rank. He tried to relax as it was, but the 『 malicious 』 of the academy attacked his younger sister Pretty and the situation suddenly changed. Koren demonstrates his true ability which was said to be the strongest in the back world!