Eri is a 7 year old girl who had a bit of a rough life before getting rescued, right now she’s at the Class 1-A Christmas party, although she doesn’t know her holidays, saying the wrong holiday phrase or giving out painted eggs, she’s innocent and pure hearted, her quirk is Rewind, she can rewind anything she touches, but she has to stockpile energy for a while to use it, right now she doesn’t have enough energy, her horn grows the more energy she has.