Hero Classroom(2016)

Eiyuu Kyoushitsu

Long ago, a Great Hero defeated the Demon King and brought peace to the world. To maintain that peace, Rosewood Academy was established to nurture heroes-in-training. Transfer student Blade is a carefree boy whose only goal is to make friends with the students at his new school. On the surface, Blade seems like an ordinary boy, but he is hiding a miserable secret. Join Blade's new friends in unraveling the mystery surrounding Blade and on their journey to become fully fledged Heroes!

(Source: Comikey)