@CCC:
Just a reminder: Gentle's plan - whatever it was - involved him sneaking in undetected, doing something, and then leaving, still undetected. The implication being something like…leaving a message that people would find later. Like "Mwahaha Gentle Criminal was here! You need better security, suckers." The goal was explicitly NOT to hurt anyone or even disrupt the festival.
I think his plan amounted to:
Step 1: Drink tea
Step 2: Invade U.A.
Step 4: FAME!!!
I don't think he had any actual idea about what he would do once inside.
@Sirxxx:
I for one think we may have witnessed the origin of the supervillain La Brava. I can't help but think that Gentle's thoughts on Page 14 weren't just for show–I think he'll be proven prescient when La Brava comes back into the story down the road as a real nasty villain to deal with.
Watching her ineffectually bop Deku on the arm and stomp her feet (Viz soundeffects translation) was heartbreaking, though. The most she could do against Izuku's insurmountable super strength was throw all of her rage and desperation at him--and it resulted in a tiny tantrum that he probably couldn't even feel :'-(
Yeah. I said it before, but I think she will join the League of Villains in exchange for their help to free Gentle. And with her hacking skills she will help them to breach Tartarus.