@LMaple I don't remember the very detailed events but
Spoiler!
Basically, the world is going towards its end and it has already ended two times before this timeline. The scene we saw with Hong seyoung was the first timeline where the world had ended and everyone had died including Lee sayoung. So euijae turned back the time to fix it, but the toll of being an anchor was far too heavy for him to bear and cause of that he had a lot of problems in 2nd timeline and couldn't use his powers freely. That's why eijae died first and Lee sayoung turned back the time this time and had to pay a heavy price as well but the watch the used to turn back the time cannot be used anymore so this their last shot at saving the world
Enhaforlife
