See, My Hero Academia is real. It's just that our quirks suck. Is not having allergies a quirk. Cause that's the best I've got. That or my weak sense of smell. Comes in handy when cleaning disgusting stuff.
I wake up during surgeries as my body processes chemical compounds like anesthetics faster than the average person. I can pretty much always feel dental work since novacaine barely works on me.
I'm also allergic to Benadryl.
I don't think either of those are particularly magical but it sure seems that way to doctors I guess.