My Hero Academia is going forth into the Shie Hassaikai Arc, the most prominent arc of the series so far and at the eye of this tornado is Kai Chisaki, the leader of the former Yakuza, better known as Overhaul.
In his introduction, we saw him kill Magne and wound Mr Compress with his quirk, which was left unexplained. The latest episode of the series gave us clarity on the functioning of his quirk and looks like this is gonna be one fierce battle for young Midoriya.
Episode 69, titled “An Unpleasant Talk”, reveals details on Overhaul’s quirk, which is also dubbed as “Overhaul”. Sir Nighteye explains the quirk, saying that the villain can disassemble and reassemble things at will.
Overhaul killed Magne with the destructive part of his quirk but it looks like he cannot kill a target with just a momentary touch. This explains why only Magne’s upper body was blown away and why Mr. Compress lost only his arm and not his life. This quirk is very similar to Shigaraki’s quirk, which allows him to cause decay to things upon physical contact.
This similarity may be because Shigaraki has been set up as the ultimate villain of the series, while Overhaul is the first main villain that Midoriya will have to take down. Overhaul, despite being calmer and more dangerous than the current Shigaraki, can be viewed as a practice villain for Midoriya. So he adapts his fighting style to overcome this sort of a quirk.
The reassembling part of Overhaul’s quirk allows him to rejoin things at will, and this power can be seen at the end of season 3 when he attaches parts of a car. The entirety of the regenerative part of his quirk has not yet been explained. However, with such an overpowered quirk, a quirk boosting drug, and an army at his disposal, Overhaul is the biggest threat that Midoriya will have to face off against.
About My Hero Academia:
In a world where people with superpowers are the norm, Izuku Midoriya has dreams of one day becoming a Hero, despite being bullied by his classmates for not having a Quirk. After being the only one to try and save his childhood bully Katsuki Bakugo from a villain, All Might, Japan’s greatest Hero, saves him and bestows upon him All Might’s own Quirk “One for All”. The story follows Izuku’s entrance into U.A. High School, a school for training the next generation of superheroes. Izuku and his new friends try to balance their Hero training with ordinary school duties. However, the League of Villains, an evil organization established by All Might’s archenemy All For One, has plans to destroy all Heroes and take control of society.