Rewind

Rewind (きし Maki Modoshi?) is the Quirk used by Eri.
Description
Rewind gives the user the ability to reverse a living being's body back to a previous state. The Quirk is the result of an extremely rare mutation, and bears no resemblance to any Quirk on either side of Eri's family's lineage.
When Rewind is activated, Eri's horn grows and glows brightly. Those that are in contact or in the vicinity of Eri at the moment of the activation start having their bodies rewound to previous physical states, undoing or bringing back injuries or modifications from the present or the past. She is capable of reverting people back to a point before they even existed, effectively erasing them from existence.