After Katsuki pushed Izuku off of the roof of their middle school which they covered it. As Izuku was falling he fell into a bar where he was met by his father and the rest of the villains as Izuku felt safe for the first time other then his mother and one of his best friend/lover Momo. After Katsuki pushed him off and that the school covered it what they failed to do was threaten Momo to keep it down as she finally revealed when they met Izuku again as she cried that the guy she loves is a villain but knew why as they captured him and had him explain what happened to him during their middle school as he told them as everyone wide eyed to have a killer in the class as some don't believe him due to him being quirkless. Some believed him and some didn't die to bastard being a quirkiest and they all followed Katsuki  example but soon met the same fate as him going to juvenile detention until they are old enough to to go prison.

Ship

Izuku x Momo

People who trust him due to Katsuki

Tenya
Ochako
Shoto
Shinso
Jirou
Momo
Nezu
Aizawa
Class B
Sato
Tokoyami
Asui
Big 3

People who doesn't due to being quirkiest
Mineta
Katsuki
All might(OFA left him due to giving it to a villain)
Kirimina (believes that Katsuki didn't kill anyone as he is misunderstood)
Rest of class A

Also Izuku have given out the Ua traitor as to how they knew they were there which led to a person hating him since Izuku got captured.

Izuku 3 quirks are black fire, black ice, and void vortex. Also Izuku is gonna be in a villain rehabilitation due to getting caught by them as the LOV are sad that he coach's and also Izuku is also the brains of their operatives until they came to a conclusion to stop their ways due to treating Izuku as family as they join him in the rehabilitation as they see Izuku as a brother and son.