All For One joins the Monster Association, and is offered an executive position due to reputation. His 'top brass' rank allowed him to command lower ranked monsters because they feared him.
He leads a group of Demon monsters to lay waste to City Z(Saitama is very deep asleep).
All Might scores a high rank in the S Class(due to popularity) and convinces three other Class S to to join him and intercept the monster team.
Class S trio:
Atomic Samurair: Monster Association Raid Arc
Genos: Post-Tournament Upgrade
All Might: Beginning of the Series
Metal Bat: Hero Hunter arc
- Winner by K.O. or death.
- Genos have full knowledge on the underlings due to scanners but haven't told anyone yet. Hero team have basic knowledge on All For One. Monster team has 1-day prep only with data on All Might and G4 Genos(Not the Version used and a weaker version).
- Takes place in Z-City.
- Phoenix Man is in his first resurrected state, and cannot resurrect himself further.