Jang Tae sang

Pragmatic & Selfish: Having lost his mother tragically as a child and being told to survive at all costs, he lives by his own rules and puts his survival above all else. Wealthy & Influential: As the owner of the House of Golden Treasure, the biggest pawn shop in Gyeongseong, he is the "king of information" and a man through whom all business passes. Charismatic & Resourceful: He possesses a keen insight, quick reactions, and sociability that allow him to navigate the dangerous colonial-era city with skill. Apolitical: Despite the Japanese occupation and his best friend's involvement in the independence movement, he remains largely neutral, prioritizing money and safety over the fight for freedom. From Selfishness to Selflessness: He begins to care deeply for Chae-ok and others, willing to risk everything he has for them, a stark contrast to his previous stance. Moral Conviction: He moves from putting money before justice to becoming a "beacon of resilience and moral conviction," standing against the horrific human experiments conducted at Ongseong Hospital. Loyalty & Compassion: The relationships he forms reveal a deeply good-natured man with intense loyalty for his friends and community, a quality that continues even into the future time setting.