After Izuku was sent by the government due ti the betrayal he was created by the government. After being created as Mr.X he was ordered to kill all hero's and those in training. When Izuku was ordered to do that he did exactly what they wanted but soon they seen that Izuku didn't kill 2 girls and of course those 2 are both Momo and Eri. Eri is because he seen her as his daughter and Momo because she is his future girlfriend/wife. As both of the girls were scared of what would happen to them they noticed that they didn't wake up dead.

Ship