Choi Jong-In

Choi Jong-In (also romanized as Jong-In Choi) is an S-Rank Hunter and the Guild Master of the Hunters Guild in the Solo Leveling anime. He's widely regarded as South Korea's strongest fire-magic user (often called the "Ultimate Hunter" or similar titles emphasizing his power).

In the anime adaptation, he appears as a tall, lanky young man with reddish hair (often depicted as red or reddish-purple), typically wearing glasses and stylish striped business suits for a polished, professional look. When activating his magic, his eyes can glow a bright color, highlighting his power.

Personality-wise, he comes across as confident, calm under pressure, and friendly or gentle in his manner of speaking—though sharp and perceptive. He's a chain smoker (frequently seen with a cigarette, which he can even use to ignite his flames), and he maintains a composed, upright demeanor that makes him popular and respected. While some fans note the anime tones down a more intimidating or "villainous-looking" vibe compared to other versions, he remains a capable, dramatic, and reliable top-tier hunter who specializes in devastating fire-based attacks.