This was an Amazing show! I am on a Seo YeaJi binge and she did amazing here! I also found some new characters, im watching this 2023/2024 so this show is currently 6/7 years old. This is an older work for her and I loved it! This storyline is just great! There is so much mystery and suspense! I couldn't get enough! 4 friends come-together and build such an extraordinary bond. They go through so much together, grow and overcome so much and they find themselves and love along the way. They also work to uncover the truth and protect their own. This show is so slept on. I highly recommend. I also loved how it ended! I didn't want to be done with these characters!