(Keito Kanazawa, quirk acid hair! Basically, her hair is acidic goo that she can control. Oh, by the way, so is all her bodily fluids! Blood? Yeah! Spit? Yes. Snot? Yup! A happy girl with a heroic spirit.)

Keito is sleeping on the common room couch, her acidic hair hardened and harmless.

Kirishima: "We need to wake her up without her hair melting the couch.."

Bakugo: "JUST THROW HER OFF THE COUCH!"