Accident/Training

Izuku Midoriya is a boy of the age of 4 years old when he falls into MT. Ebott in the forest near his school, while in the place known as the underground Izuku discovers his quirk which he names DETERMINATION which allows him to come back from the dead if he's determined enough, after the events of UNDERTALE Izuku try's to find his mom but is sad to find out that she has left this world while he was away so he is adopted into the Dreamer family and starts his new life as Izuku Dreamer.