Just before Mahito gets absorbed by pseudo-Geto he manages to flee to attempt one last desperate move so he can survive. He uses soul multiplicity on himself and one random human that just happened to be there in the hopes that he will be able to use body repel to at least do some damage to pseudo-Geto. The result of his technique surprises him as instead of a strong rejection him and the human fuse into one. The fusion of Mahito and the human get sent into the borders between worlds towards the world of My Hero Academia. Just before they can reach safety, their potential new home rejects the existence of Mahito because of his nature as a cursed spirit and erase his consciousness leaving the random with all of Mahito's abillities and a new body.