I am on ep 4 and I am lost. I am so confused. I think I missed something. there are so many names and back and forth. I can't stop watching though. though I have no idea what is going on. I almost feel like I need to watch from the beginning again. I get the point of, 'you should be confused and things will make sense later,' but I don't understand the two different worlds individually.

Is In-gyu yeon-jun? should I start the series over? ugh Now both guys are fighting over her?! How can the show be so good but yet I don't understand why or what is happening.