Chainsaw Man, Vol. 2 by Tatsuki Fujimoto

Broke young man + chainsaw demon = Chainsaw Man! Denji was a small-time devil hunter just trying to survive in a harsh world. After being killed on a job, he is revived by his pet devil Pochita and becomes something new and dangerous—Chainsaw Man! In order to achieve the greatest goal in human history—to touch a boob—Denji will risk everything in a fight against the dangerous Bat Devil. But will getting what he wants actually make him happy…?