Huo Yan Li serves as a company commander within Special Fire Force Company 1, rising from lieutenant to captain after Leonard Burns' death in action. A Third Generation pyrokinetic, he generates and manipulates flames, wielding the "Lantern Fist" technique that integrates fire into his hand-to-hand combat. He lost his right arm during a mission but remains effective in battle.
He possesses short, shaggy blond hair partially obscuring his face and eyes that naturally appear closed. His attire includes a dark cassock, a light high-collared overcoat, a skirt-like garment, dark shoes, and a hat, consistent with Company 1 commanders and adorned with a cross-like pendant. The loss of his arm occurred during an encounter involving a fire arrow.
His personality contrasts with teammates Karim Flam and Rekka Hoshimiya; he exhibits a generally laid-back, responsible, and calm demeanor. He strongly values formal etiquette within Company 1, including dress codes, and avoids unnecessary conflict. Despite revelations of the Holy Sol Temple's corruption, he maintains his faith, focusing on the hope it provides during tragedies and venerating the Sun God's positive aspects over the malicious ideals of groups like the White-Clad.
Key events include participating in discussions about conflicts between fire companies and overseeing multi-brigade training sessions. During the investigation into Rekka's artificial Infernals, he and Karim located and restrained their former comrade. When Rekka was killed by a sniper's fire arrow and Karim targeted next, he pushed Karim to safety, resulting in the severing of his own arm. He interpreted the loss as a divine test and persuaded Karim to join him in a symbolic hand gesture.
After Burns' death, he assumed command of Company 1 as captain, though he expressed doubts about his suitability and suggested Onyango might be better qualified. During the Asakusa arc, he addressed his brigade about combating fear spread by the White-Clad. At a sentient Infernal outbreak scene, he coordinated civilian evacuations led by Onyango while confronting Infernals alongside Karim. He killed one Infernal to protect Onyango and later observed a Demon Infernal's battle with Benimaru Shinmon, commenting on the remaining Pillars needed for the world's merger with Adolla.
He survived the Great Cataclysm arc, during which Shinra Kusakabe manipulated time to revert reality. His name, derived from the Chinese "火焰" (huǒ yàn), translates to "flames," reflecting his pyrokinetic abilities.