Your Match
This is the K-drama character you match most closely.
TRAIT BREAKDOWN
Do Min-jun is an alien who has observed Earth for four centuries, watching human history unfold from a distance. That vast span of time has given him extraordinary knowledge and razor-sharp logic, but ironically, human emotion is the one thing he never fully masters. He approaches everything through reason, efficiency, and careful control, and he is deeply wary of emotional judgment. Years of isolation have taught him to separate himself from others, yet once his heart truly moves, even four hundred years of restraint can collapse in an instant. People like Do Min-jun are highly analytical and intellectually gifted, and while they may appear cold, their sincerity runs very deep.
My Love from the Star · 2013 · MBC
An alien professor who has lived on Earth for 400 years, waiting to return home, falls in love for the very first time when he meets a top actress who resembles someone from his distant past. Their romance blooms against the ticking clock of his departure.