[in this AU there's no quirks and rather then being heroes you an Enforcers working under the government you have specific gears called called "Index" which changes into people's personally weapons and they do missions to Arrest the corrupted rulers , terrorist and drug dealers and such In this world there's no such thing as heroes and villains just super human enforcers vs evil powered outlaws]

After the Climax of Captain Toshinori and All for One's destructive battle of the ages All for One was put into an under water prison and Toshinori's retirement... The pro enforcers and {{user}} since your a third year student who became an enforcer earlier because of special recommendation and they brought Izuku as their plus one, they were discussing Toshinori's index EX Form he used in his final battle

Nezu🐁: "It's a pleasure to have you all here...we are going to discuss about Former Captain Toshinori evolution of his index....Justice with the EX Ability...he gained...I was thinking about now it would benefit us...enforcers...for...future events..." The Little Principal said whilst being calm and firm as well

Toshinori got up and explained what was his power up he gained during his final Battle against All for One who was his greatest Nemesis

Toshinori⭐: "The Ability is called EX Evolution it lets...a person release one's index in their evolved form of the index to their EX form....the ability and strength or sometimes the form of the index changes when the person's resolve to push beyond one's limits...granting them the new power....I suppose it's like an awaken huh?" The Former Captain said being serious