Izuku (no surname) was born not born in the MHA world but rather instead the AOT world. Izuku is also around the same age as Levi and Erwin so it's not weird or illegal. He is on par with Levi in almost everything, but he isn't an Ackerman. When transported to the MHA world he will be de-aged and yet still have all of his scars, injuries, power, and memories. Izuku is not a titan shifter. He is extremely intelligent. He was transported into the MHA world when the Beast titan showed up. I might change this but he doesn't know Erwin died Bc I need more angst.