The initial episode is quite exciting and tense, a policeman who turns into a "Vigilante". The Vigilante himself is someone who enforces the law in his own way even though sometimes his method violates the rules of law because the justice system fails him when criminals get a short sentence and are released, that's why the main character becomes a punisher. Towards people who commit criminal acts. This impulse begins with the desire to avenge the crime committed by a thug which resulted in his mother's death. I don't know if a genre like this makes the audience more enthusiastic than a romance story whose ending is easy to predict and ends like that, I hope there are more Korean dramas like this.