Overhaul (Quirk)

Overhaul (オーバーホール) is a Quirk used by Kai Chisaki.

Description
Kai Chisaki's Quirk gives him the ability to disassemble or "Overhaul" anything he touches with his bare hands. From there, Chisaki can either leave his target destroyed, restore it to its original form or shape it into something new. This process happens instantly and effects living and non-living things alike.

Overhaul can be used to deconstruct matter and reconstruct it into shapes favorable to Chisaki and hostile to his enemies. The deconstruction process happens the instant Chisaki touches something with his hand. It takes just one finger to activate and Chisaki can choose to overhaul one select part or the entirety of his target.

Even after taking something or someone completely apart, Chisaki can choose to return them to the original state. When he chooses to Overhaul a person, he can heal any injuries or ailments they once had by reconstructing them. Chisaki has used this ability on himself and noted that the deconstruction phase is very painful.

Chisaki can recombine two different objects or beings into a single entity that possesses components of both subjects (including Quirks). He performs this by holding both elements he wants to combine with each separate hand.

When overhauling an entire area, the deconstruction and reconstruction phases both happen too fast to track the process. Chisaki can manipulate anywhere in the room from a single point. Chisaki can create holes, walls, spikes, and platforms among other applications.

Usage
Kai's main usage of Overhaul outside of battle was obtaining DNA samples from Eri, which was realized by destroying her body, collecting some of her remains and reassembling her back to life. Because Eri had access to a Rewind Quirk, Kai was able to experiment on her blood, transforming it into an ingredient for a special drug that could reverse a target's Quirk Factor, turning them Quirkless.

Yakuza's traditionally avoid being convicted for crimes by leaving their trail clean. Chisaki cleaned up his crimes by disassembling his targets first, taking what he needed and then restore them to perfect condition. He also uses this same tactic to recruit members to his organization.

In battle, Chisaki focuses on quickly dissembling his targets to kill them or reshaping his terrain into a barrage of spikes. He can reshape the ground to maneuver himself around and block incoming attacks. The variation of his attacks is great because Chisaki can reshape the ground into any dangerous shape best suited to pierce his foes. This also makes him a threat from both close and long range.

After overhauling himself and Shin Nemoto, Kai Chisaki revamped his own body into a monstrous form, who had access to both this Quirk as well as Nemoto's. This form granted Chisaki increased power, speed and an extra set of arms for him to activate his Quirk through. He would repeat this tactic with Rikiya Katsukame, taking advantage of his grown body to increase his abilities even further.