Mashle: Magic and Muscles, Vol. 7: Volume 7 (manga)

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!Mash manages to crack the goddess statue and overcome Carpaccio, wielder of one of the Master Canes. Now Mash must triumph over his next opponent, Margarette Macaron, a caster of sound magic and this year's favorite to become Divine Visionary. But before the battle begins, Divine Visionary Kaldo Gehenna, the head of magic talent administration, insists on assessing Mash to ensure he's worthy of becoming a Divine Visionary by challenging him to a not-so-friendly game of you look, you lose.