Hair

Black

Eyes

Black

Affiliations

Special Fire Force Training School

Occupation

Student
Fire Soldier Cadet

Family

Father (Deceased)

Manga Appearances

Fire Force Chapter 2

Anime Appearances

Fire Force Episode 2

Mamoru makes his debut early in the series as a young civilian trapped in his home after his father unexpectedly transforms into an Infernal. He is first seen in a state of helplessness, with falling debris threatening his life, setting the stage for a demonstration of Company 8's rescue capabilities.

During the incident, Mamoru is saved by Shinra Kusakabe, who catches the debris before it can crush him. Unlike the general public who often fear Shinra's nervous smile, Mamoru instinctively interprets the expression as a sign of confidence and safety. This interaction marks a crucial turning point for the protagonist, as Mamoru is the first outsider to genuinely acknowledge Shinra as a "Hero" rather than a "Devil."

Mamoru commits himself to a path of service to protect others. He is later shown to have successfully enrolled in the Special Fire Force Training School, where he is seen wearing the standard cadet uniform and undergoing rigorous drills. This development confirms his survival and demonstrates the lasting impact of Shinra's heroism on the younger generation.