A central question of Chainsaw Man is what it means to be human, and how to stay human in the face of dehumanization. Its world building, character development, and themes all touch on this question. From the varied roles of fiends and hybrids, to Denji's character arc as he struggles to overcome his exploitation, Chainsaw Man looks at the complex and often ambiguous lines between human and not-human.
Source:https://www.cbr.com/chainsaw-man-tackles-humanity/