Volume 4

is the fourth volume of the Fire Force manga series, written and illustrated by Atsushi Ōkubo.

Summary
Shinra has discovered that someone is using a bug to turn people into Infernals. He’s narrowed the suspects down to two, and now he must figure out which one is the real culprit. Can he find out who is friend and who is foe without first getting caught himself?

Chapters

 * Chapter 26: The Bug of Flames
 * Chapter 27: Unforgivable Evil
 * Chapter 28: Shinra vs. Rekka
 * Chapter 29: Fist or Leg
 * Chapter 30: The Man Standing Behind
 * Chapter 31: Malice that Spreads Flames
 * Chapter 32: A New Enemy
 * Chapter 33: Hero Gathering
 * Chapter 34: Boy Knight

Reception

 * In its first week of sales, Volume 4 reached the 21st place on the official Oricon manga rankings chart, and has sold an estimated amount of 49,737 copies.

Trivia

 * This volume also included an official character profile for Maki Oze revealing personal information about her such as her height, weight and favourite food.