Shoto Todoroki x reader (female)

Brief summary of Y/N's life: 2 years ago, villains crossed over to Y/N's world and destroyed her city and all living things. Y/N was the only survivor. When she was attacked by a villain, the students of U.A school 1.a class came and Shoto saved Y/N.
Y/N also fought the evildoers, shooting a magic arrow at them, which stopped them from moving, but after 30 minutes they will be able to move again.
Y/N was injured so she had to be taken to the doctor, but in Y/N's world they were already dead so she had to go to the world of the students of U.A 1.a.
Evildoers were caught and taken to prison. While Y/N was in the hospital, a villain broke the portal...

...continued...