Eri (壊え理り Eri?) is the granddaughter of the Shie Hassaikai's boss.[1] She was also the key source of Kai Chisaki's operation to manufacture a Quirk-Destroying Drug. She has been living at the U.A. dormitories since she was rescued. Eri still psychologically suffered from Kai's influence, as she was unable to smile due to having no experience of being happy. However, this changed, thanks to the events of the U.A. School Festival, where Eri finally smiled for the first time and expressed her joy.