TV-Series
Description
Sōya Kazama captains Border's A-rank Kazama Squad, holding the position of #2 Attacker and #3 overall in solo rankings. He possesses spiky black hair, red eyes, and a notably short stature despite being 21 years old. His Trion body wears a distinctive navy blue shirt featuring a black cross design, a black shrug jacket, boot pants, and Border emblems on the sleeves.

Kazama maintains a consistently calm and reserved personality, speaking only when necessary and keeping composure under pressure. He avoids emotional decisions and claims not to hold grudges, evidenced by his lack of resentment toward Neighbors despite his brother's death. He exhibits pride in his abilities, refusing to fight Yūma Kuga until Yūma attained A-rank status. Widely recognized for tactical expertise, he possesses a keen ability to identify opponents' weaknesses and provide strategic advice. This analytical nature extends to assessing others, such as noting Osamu Mikumo's physical limitations while acknowledging his strategic intelligence.

His combat capabilities stem from specialized Trigger usage and high parameters: Trion (6), Attack (9), Defense/Support (8), Mobility (9), Skill (9), Range (1), Command (9), and Special Tactics (8), totaling 59 points. As a stealth combat specialist, his primary Triggers include Scorpion—modified with a hollowed blade for extended reach—which he wields with exceptional proficiency, often dual-wielding or using reverse grips. He employs the signature "Mole Claw" technique, driving Scorpion through the ground to impale and immobilize opponents. He combines this with Bagworm for radar concealment, Shield for defense, and Chameleon for invisibility, utilizing integrated uniform devices to reduce Chameleon's Trion consumption. His agility enables rapid maneuvering and surprise attacks, demonstrated by deflecting projectiles and evenly crossing blades with Jin using a sealed Fujin. Kazama Squad's coordination emphasizes hit-and-run tactics, noted for their effectiveness against Black Triggers.

Key relationships shape his interactions: he mentors Osamu Mikumo, participating in over 20 solo matches where Osamu never won, while acknowledging Osamu's strategic growth. He maintains a respectful rivalry with Yūichi Jin, confronting him during regulation violations but cooperating in larger conflicts. He recruited Shirō Kikuchihara for his sensory abilities, recognizing their tactical advantage. His dynamic with operator Kaho Mikami involves blunt criticism, yet he expresses concern for rookie agents' safety during withdrawals. He declined combat with Yūma Kuga until Yūma attained A-rank, reflecting his standards for worthy opponents.

Background trivia includes the meaning of his name—"Sōya" translating to "blue/green" and "Kazama" to "among the wind." His preferences include katsu curry rice, milk, and self-discipline. Humorous anecdotes describe him unknowingly purchasing child transportation tickets for years, drunkenly fighting a mailbox with Suwa, and secretly riding Raijinmaru only to be recorded. His role shifted from antagonist during the Black Trigger Capture Arc to a supporting character afterward, and he is among the candidates to inherit the Black Trigger Fūjin.