Jeong Su-gyeom emerges as a romantic rival, creating tension and competition for Cha Seon-chaek's attention.
Jeong Su-gyeom's romantic pursuit creates tension and rivalry with Prince Kyungsung for Cha Seon-chaek's affection.
Jeong Su-gyeom and Cha Seon-chaek form a strategic alliance to uncover truths and navigate crises.
They interact within social circles, initially as acquaintances before romantic tension and alliances develop.
Both navigate court politics and occasionally align interests against the main couple's progress.
Explore the full interactive character relationship map of The First Night with the Duke