Baek, Yoon-ho

Baek Yoon-ho is a Korean S-Rank hunter who specializes in transformation magic and the Guild Master of the White Tiger Guild.

[Spoiler] Jin-woo and Yoon-ho first met during the Red Gate incident that caused the deaths of a few of the White Tiger Guild's forces, including A-Rank Kim Chul. After this incident, Baek developed a great interest in Jin-woo and was the first to theorize that Jin-woo possessed the ability to increase his strength as he fought more. Baek developed a friendly atmosphere with Jin-woo and the latter showed the same. [/Spoiler]

[Spoiler] Over time, Yoon-ho realizes the truth that Jin-woo is a growth-type hunter which essentially means he has no limits. [/Spoiler]

[Spoiler] He is one of the main attack force as one of the Jeju Island Raid Party members. [/Spoiler]

Abilities:

[Spoiler] Transformation: Yoon-ho turns into a humanoid white tiger with long white hair and sharp claws and fangs. His physique becomes more muscular and aggressive when he transforms which makes him substantially stronger compared to his normal state.

Eyes of the Beast: This is one of the unique traits Yoon-ho posses, where he can see and evaluate the strength of the person, magical beast, or gate. [/Spoiler]

(Source: Solo Leveling Wiki, edited)