Chapter 401

Let's Live on a Transmission Tower, Part 4 (鉄塔に住もう その④), originally in the WSJ release, is the one hundred thirty-sixth chapter of Diamond is Unbreakable and the four hundred first chapter of the JoJo's Bizarre Adventure manga.

Summary
Mikitaka has entangled Toyohiro inside Super Fly, allowing Josuke to escape. Toyohiro then cuts the cable with a hidden knife, but Mikitaka reveals that the cable isn't part of his body, causing Toyohiro to fall. However, Toyohiro had already calculated that much, having mentally practiced every way to escape for years. The damage bounces back to Mikitaka while Toyohiro effortlessly catches one of the beams.

He then uses his knowledge of Super Fly to propel several bolts to pin down Mikitaka. As Toyohiro prepares his escape, revealing that his name is a pseudonym and that his face is a mask, Mikitaka despairs. However, Josuke repairs the cable Toyohiro cut and is now near Toyohiro.