You Who Came from the Stars is a fantasy rom-com about alien Do Min Joon who abruptly landed on the Earth 400 years ago in the Joseon Dynasty. Living alone for hundred years with his supernatural power which enables him to stop the time, Do Min Joon is a very cold man who doesn't want to care about people around him because he knows they will get old & die, leaving him alone again.
One fateful day he meets with top actress Chun Song Yi (Jun Ji Hyun) who's very blunt and keeps making troubles wherever she goes. It's very rare for her to meet a man who's very stoic and is not interested in her, so she challenges herself to conquer Do Min Joon's heart until they begin to fall in love with each other.
Facing a harsh reality that Do Min Joon will have to go back to his planet one day, Chun Song Yi is very anxious when that time comes closer. Nobody else cares her as much as he does, but thankfully, the ending of YWCFS is very satisfying.
YWCFTS spends a great deal of time solving the murder case of a famous actress, Han Yoo Ra. Chun Song Yi who"s in the same cruise ship on the day of her accident knows the culprit behind this case, but Lee Jae Kyung (Shin Sung Ro) uses all his dirty trick to ensure his secret is safe. His younger brother Lee Hwi Kyung (Park Hae Jin) is a kind-hearted man who protects Chun Song Yi since they're kids. As her childhood friend who loves Song Yi, he hides his feeling so his friend can find her true happiness. Unfortunately, Song Yi's best friend Yoo Se Mi (Yoo In Na) stabs her in the back. But after she finds out the truth, they begin to rekindle their friendship again