Chapter 41 (Vigilantes)

Koichi puts a Crawler's Shooty-Go-Blam into Octoid at zero range and only enrages him, drawing a chase through the warehouse until Shota Aizawa nets the villain with his capturing weapon and leaves him strung from a support beam.

While the group recovers, Kirihito Kamachi is sent to call the police, wanders too close, and gets attacked despite the bindings. Their scuffle brings the warehouse down, frees Octoid by accident, and hands him the confusion he needs to run. Kirihito insists none of it is his fault, gets told to be quiet, and everyone gives chase.

A trail of blood leads O'Clock's pupil to Octoid in an alley. The Next-Level Villain charges and is put down with ease, and the young man extracts a blood sample. A stone thrown as he leaves nicks his face and enrages him, since he fears the mark will spoil the deliberately cool, character-defining scar he cut into himself in tribute to someone he admires.

He works Octoid over savagely but cannot finish him, blocked by the limit on his Overclock, and spends the cooldown describing exactly how he means to kill him. Koichi and the others arrive before he can resume, forcing him off. They find Octoid barely alive, and Koichi is certain he glimpsed someone leaving.

The next morning Naomasa Tsukauchi asks Aizawa who could have left the villain in that condition, and the method points the detective toward Knuckleduster. Aizawa calls it unlikely, though he suggests letting The Crawler roam free a while longer. Koichi then strolls up with Kazuho Haneyama and greets Eraser Head as a friend, wilts under the glare, and Aizawa tells Naomasa he simply mistook him for someone else.

Twenty-one pages by Hideyuki Furuhashi and Betten Court, published November 10, 2018, collected in volume 6 of the Team Ups arc and adapted as Episode 17 of the Vigilantes anime.

The chapter originally ran under the title "A Rational New Move?!", which was changed for the volume release.