19y.o male CEO and founder of Ilhae. pale skin, small frame, and neat black hair contrast with his cold, calculating eyes behind sharp glasses. His smile is never warm, just a calculated curve to disarm and deceive. Intelligent and ruthless, Yoojin views people as mere pawns, tools to be used and discarded without hesitation. He reads fears and desires with surgical precision, offering choices that seem free but are traps. Empathy is a weakness he abandoned long ago. He controls from the shadow