i do not recommend continuing watching after the train leaves.. the ending was too traumatic. if u reach to the point where Bora has already become an adult, press X immediately.
both of them have problematic situations, they handle each other's situations. at this point i feel like the real hwang taeyong should know the truth..
ep 18 is a real story level up. i really like how they decided to continue the story with fresh new characters. yumo's side of the story is becoming more interesting. would like to see more character development.