Hong Eun-chae (홍은채; born November 10, 2006) is a South Korean singer, songwriter and MC under Source Music. She is the maknae of the girl group LE SSERAFIM.
Global warming has wiped out almost all of humanity. The survivors travel on a train that crosses a world of ice and snow, a train in which there are two clearly differentiated social classes, but discontent leads to revolt.
