Red and Mad

A woman named Lee Yeju discovers she can avoid death by passing through a "door" that transports her to the near future. However, one such escape sends her a thousand years forward in time, where she encounters a magical individual determined to eradicate all humans. Yeju flees by using the door again, only to find it repeatedly returns her to the same person. It appears her only chance at survival is to stay with him, as she attempts to show that humanity is still worth saving.