The chapter begins with the aftermath of the battle against the Hell Devil. Denji, now in his full Chainsaw Devil form, is briefly pushed into Hell by a giant hand from heaven before quickly returning to Earth.

Makima reveals she is a "fan" of the Chainsaw Devil and intends to control him to create a "perfect" world by having him erase concepts like hunger, war, and death. Thematic Analysis and Character Motivations

Chapter 84 of Chainsaw Man , titled "The Hero of Hell," is a pivotal installment that fundamentally redefines the series' lore and reveals Makima's ultimate ambitions. It marks the transition from the Control Devil arc into the final stages of Part 1.

Makima lists several major catastrophes that no longer exist in the world's history because they were eaten by Chainsaw Man, including Nazism, World War II, AIDS, and nuclear weapons .

Chapter 84 shifts the perspective on Makima from a mysterious authority figure to a fanatic with a god-complex.

Makima explains to Kishibe that the Chainsaw Devil is known as the "Hero of Hell". He is a chaotic force that obliterates any devil he encounters—both those that attack him and those that cry out for help.

The chapter's most significant revelation is that when the Chainsaw Devil consumes a devil, the concept that devil represents is erased from human memory and reality.