I personally only watched this show, because I've read the webtoon. There was a couple of differences and samaritans. For one, Kang Soojin was honestly a lot better person in the drama. Sadly, she became evil due to love, but in the webtoon, it shows more of Joo Gyung'slove life, but in the drama, we get to see her family a bit more. I've had always shipped Ju Gyung and Suho, even though the webtoon and the drama, but for some reason, on the last episode of the drama, I felt like she should have ended up with Seojun. I pity him. But at least in the webtoon, they dated. Honestly m favorite character would be her brother and Soo Ah