The rich daughter of a hotel owner/automobile manufacturer with ties to the Korean mob, Sun has an affair and almost leaves her husband Jin before the crash. They reconcile on the island and she becomes pregnant with Jin's baby. After escaping the island, Sun gives birth to Jin's baby, a girl named Ji Yeon, off the island. With the settlement money from Oceanic, Sun buys a controlling share of her father's company. Sun eventually returns to the island on Ajira Airways Flight 316 to search for Jin, but is not propelled to 1977 with the other members of the Oceanic Six and instead remains in 2007. After the timelines reunite, Jin and Sun eventually reunite. When the group tries to escape on Charles Widmore's submarine, a bomb smuggled aboard by the Man in Black detonates, pinning Sun to the inside of the sub. She is unable to escape and drowns along with her husband Jin.
Sun Kwon is a character on the ABC show, LOST, portrayed by Korean actress Yunjin Kim. Sun is the head bitch in charge, as is best displayed by her capacity for sitting back and letting everyone else do stupid shit like hunting for monsters. In any given scene, there is a ~45% likelihood that Sun will slap a character in the face, pull a gun on them, shoot them to death on a boat, poison them to keep them *off* a boat, hit them in the back of the head with an oar, or secretly steal their billion-dollar corporation by purchasing it through multiple banks. All of the crazy time travel shit is happening on the island because Sun is using her Korean magic to make it happen.