What is being said here is that Yoon Eun-seong, who is portrayed as a villain, is not really in line with the series. Where Yoon Eun-seong was willing to do anything for heroin, he saved her life, and whether he did it to get her ultimately ended up being the reason he lost her. And all of this is impossible - because he had brain surgery; nothing is conceivable. Here he can be called another hero, not as a villain, but as a side character. So my opinion is, even though the series had a happy ending, I still didn't like it. ✨💙🥀
