The first season of Chainsaw Man introduced viewers to a handful of wacky, brutal, and often subversive characters to meet, including protagonist Denji/Chainsaw Man, his partner Power, and far more. Fans latched onto all these heroes right away, embracing them all despite their relatable and realistic flaws, but the character Kishibe didn't quite stand out as much. He didn't deconstruct the shonen action formula in colorful and fun ways, which made him easy to miss, but he did contribute something vital to Chainsaw Man.
Source:https://www.cbr.com/kishibe-chainsaw-man/