Karim Flam holds dual roles as lieutenant and priest for Special Fire Force Company 1. He is 22 years old, born December 12, stands 178.5 cm tall, and has blood type AB. His appearance features short, dark grey hair brushed forward with shaved sides, small lazy dark eyes often conveying irritation, a dark cassock beneath a light high-collared overcoat with a skirt-like garment, a cross-shaped pendant, and headphones. In combat, he wields musical instruments. His personality presents a serious, cautious exterior marked by blunt disrespect toward strangers and frequent annoyance, especially disapproving of playfulness during combat. Despite this brashness, he strictly observes Company 1 etiquette, respects colleagues, and demonstrates strong leadership. He values justice, willing to reveal sensitive ally information to achieve common goals, and his speech involves repeating phrases with slight variations. Deep loyalty defines his relationships, particularly with childhood friends Rekka Hoshimiya and Foien Li. As a Second Generation pyrokinetic, Karim's ignition ability utilizes thermoacoustic refrigeration. Employing a wind instrument-shaped device, he absorbs ambient heat energy, converts it into sound waves, and rapidly lowers temperatures to generate ice, incapacitating infernals or forming projectiles. A secondary bell instrument produces alarming noises that amplify heat absorption. His strategic acumen enables rapid formulation of effective battle plans, such as coordinating smokescreens and diversions during sniper engagements. Though his power mimics cryokinesis, it fundamentally manipulates heat-sound energy conversion. Key narrative arcs detail his background and development. During Shinra Kusakabe and Arthur Boyle’s probation at Company 1, Karim tested their integrity by planting an infernal-creating insect in his desk, leading them to uncover Rekka’s treason. Confronting Rekka, Karim froze him to prevent harm, but Rekka was assassinated by the White-Clad; Foien lost his forearm shielding Karim from a subsequent attack. This loss profoundly impacted Karim, driving his alliance with Company 8 to investigate Rekka’s death and the Evangelist’s influence. Later, he attended high-level meetings with fire force commanders and Raffles III addressing spontaneous combustion and Adolla Burst phenomena. He formally collaborated with Company 8’s Captain Akitaru Ōbi, sharing intelligence on the Evangelist and advocating specialized training for Company 8 members. His involvement extended to strategic discussions at Company 7’s cathedral, where he critiqued rookie combat readiness. Relationships underscore his loyalty. His bond with Rekka and Foien originated in childhood; Rekka’s betrayal and death intensified his resolve against the White-Clad. He trusts Company 8 following shared trauma, supporting their missions despite bureaucratic constraints. As a leader, he mentors newcomers while vigilantly monitoring team integrity for signs of betrayal.