Arthur Boyle

Height: 174 cm

He Trained at the academy with Shinra. Although he follows his own personal code of chivalry as the self-proclaimed Knight King, he is incredibly stupid. But girls love him.

Abilities
Being a Third Generation Pyrokinetic, Arthur has been identified by individuals as having a strong will of fire. By raising the temperature of the flames he creates, he can fabricate and control plasma, which either elevates or diminishes in relation to Arthur's disarrangement from reality. The more delusional he is, the stronger Arthur becomes.
Being able to use his Ignition Ability on hilt-like objects, Arthur can weld, cut through metal, and generate electricity. He mainly uses his ability on his blade-less sword Excalibur, which is most effective using his right hand and cannot be easily extinguished by an experienced Second Generation. Using it, he can deflect and fend off against flames.

(Source: Fire Force Wikia, Kodansha)