Such bullcrap...they know MC can heal anyone perfectly 3 times a day (self imposed limit) and don't ask him to heal the injured elite students.
I detest when a author makes up a problem that can be resolved with a element in the story verybody knows and is not hard to get a hand on.
This story was better at the start, but the changes so MC is not forced into a spectators role as a healer made it much worse.
Doing so he just have to keep a level of strenght inferior to the hero to not trigger Foxdie was a massive mistake.
Guess japanese still have more experience in making protagonists that hide their power and a good reason to do so.