Mashle: Magic and Muscles, Vol. 4 by Hajime Komoto

[Viz] Can muscles crush magic?! In the magic realm, magic is everything—everyone can use it, and one’s skill determines their social status. Deep in the forest, oblivious to the ways of the world, lives Mash. Thanks to his daily training, he’s become a fitness god. When Mash is discovered, he has no choice but to enroll in magic school, where he must beat the competition without revealing his secret—he can’t use magic! After getting separated, Mash and the gang face off against individual members of the Magia Lupus, the group of Lang Dorm baddies who have been stealing magic power from other students. Mash manages to put a stop to his speedy opponent, but Dot struggles to take down Love. With his back against the wall, Dot unleashes a devastating new power. Meanwhile, Abel, the leader of the Magia Lupus, awaits Mash for a decisive final battle!