Hiro

Hero (also known as Hiro) is an unpopular one-star meister at the DWMA, mostly used by his classmates as an errand boy — fetching food, standing in as a practice dummy for new techniques, whatever's needed.

Weak combat skills and a reputation as "the worst meister ever" keep Hero perpetually overshadowed by stronger students. In a desperate bid to change that, he seeks out a partnership with the legendary sword Excalibur, hoping a weapon of that caliber will finally earn him some respect.

Excalibur's personality, however, turns out to be a trial few can endure for long, and Hero's brief partnership with him becomes one of the clearest illustrations of just how unbearable that legendary sword really is.