High Speed is the thirteen chapter of the Under Doctor manga series, written and illustrated by Kyo Tanimoto. It was released on April 19, 2026.
Plot
Chapter 13 starts off where Chapter 12 ends off with Haiji asking to help Maxwell. Maxwell responds to Haiji by saying hurry up and kill him, and that he has no intention of leaving without killing his target. Maxwell instantly pumps up, and reveals his real body. Maxwell says that he doesn't need his hands and lands a kick on Haiji. Maxwell explains that legs have the greatest muscle mass of the entire human body and thanks to his body's unique composition, his legs are just like katana from his thighs down to his toes. Maxwell adds that a single leg hit would be enough to deal mortal damage, especially since Haiji is unarmed. Haiji responds by saying he won't let Maxwell hit him, and Maxwell says if he does hit him, it's an instant game over. Maxwell continues to attack Haiji with his legs and Haiji can't seem to find an opening to attack Maxwell. Inside Chiwa's thoughts, that she can't believe Haiji is stuck defending himself even though he's using Overload, a technique meant to finish things quickly. Chiwa knows Haiji only has 60 seconds left before Overload is gone, and is beginning to worry. Haiji says that there has to be a downside to enhancing Maxwell's body by that much. Maxwell says he'll end it with his next strike and he adds that he doubts the building will collapse if he breaks a wall from "this angle". Maxwell rushes in with a kick and Haiji is looking for a opening and he finds it with him tapping Maxwell on the ears, calling it Earquake. Maxwell falls to the ground, and Haiji explains that he disturbted his equilibirum by stabbing his temporal region. Haiji adds that Maxwell's semicrucual ear canals and otoliths are currently malfunctioning and in that respect, he's human aswell. Chapter 13 ends with Haiji saying that he's almost at his limit as well, and uses Over Fingers to end the fight.
Characters in Order of Appearance
Battles & Events
Author's Comment
"I made a rule that I need to do a squat every time I open the fridge. Gotta get some exercise."