So when they become villain first they need to kill eraser head do to his quirk and blow up u.a and all the hero schools but first they need all the info from all the students and kill there family's as well
And probably take over America or the big countrys as well do to them having bombs and armys maybe force or persuade shinso to becoming a villain and to band heroes and y/n will ask izuku to kill him so he can go to the next one but it's just my idea