Even though I have seen this drama recommended over and over again, I kept putting off watching it because I don't like hospital dramas typically. But then I started watching it and was HOOKED. This isn't your typical hospital drama with the focus on a patient every episode. It's so much better.

Tin is a third year resident doctor in the ER. His job is busy - there's constantly people that need his attention, whether that be for some scrapes and bruises or for CPR emergencies. When he's not dealing with that, he has to deal with Professor Sak on his back about prioritizing the right cases and sending the rest to him. One particularly busy day, Tin gets multiple life-or-death cases, and he attempts to help a college student named Tol who was in a car crash. No matter how hard he tries, Tin can't save him and the student dies. Then, when Tin wakes up before his shift, he realizes that he's living the same day over again, down to the last detail. When Tol shows up in the ambulance once again, Tin's attempts still fail to save him. How many times will Tin have to relive this tragedy? How can he change it, and what repercussions will these changes have?

The way that Tin and Tol's relationship develops over the course of the show is absolutely spectacular. It's not the main point of the show, but rather a secondary plotline that helps build the characters they're playing. Watching Tin get closer and closer to Tol, but still having to watch him die over and over again is painful but amazing to watch.

I was worried that it would get stale and that watching Tin repeat his days would get too repetitive but BOY was I wrong! Tin's character continues to find new ways to attempt to save Tol, but this can lead to unexpected consequences. The further he goes back in time, the closer he can get to Tol, and the larger the impact of his actions on his future. This was a series that surprised me throughout the entire show and is not one to miss.