Eri (壊え理り, Eri?) is the granddaughter of the Shie Hassaikai's boss. She was also the key source of Kai Chisaki's operation to manufacture the Quirk-Destroying Drug via her Quirk, Rewind, and had been living at the U.A. dormitories since she was rescued.

Following the Final War, Eri's guardianship was transferred from her grandfather to Mandalay, and she now lives with her and Kota Izumi. 

 Eight years afterward, Eri is now a middle school student who dreams of being a musician, while beginn