This medical drama with a touch of fantasy is a must-watch for fans of the genre. The story builds up gradually with well-thought-out character connections that are seamlessly revealed as the plot progresses. While there were no unexpected twists, the three ghosts and their stories are particularly touching and stand out among the cast.

Kim Bum's acting skills are versatile, and Rain's charisma shines through despite not being in many acting roles anymore. The climax is a rollercoaster of emotions, with tearjerking and heartwarming scenes that will keep you on the edge of your seat throughout the series. The way the young Dr. Koh looked at Dr. Oh is sure to tug at your heartstrings.

As for what viewers can expect, the story provides a reality check that doctors can't save everyone, and it's this that builds the characters. The shift in the characters, such as Dr. Cha and Dr. Koh, is triggered by events that will keep you guessing until the very end. The story is a beautiful reminder of qualities like redemption, perseverance, dedication, and calling.

If you're looking for a medical drama with a little something extra, then this is a must-watch. With its well-developed story and characters, it's sure to be a favorite among many viewers. So, if you haven't watched it yet, it's time to add it to your watchlist now!