A truly phenomenal Counter who possesses the ability to summon the 'Territory' and surpasses his limits at every moment. Twenty-year-old So Mun, chasing demons with his hair grown long, is 180 degrees different from the high school boy who used to limp and suffer from bullying. Not only can he control the Territory at will, but he also possesses powerful psychokinesis, even taking charge of training the other Counters. If there is one thing that hasn't changed, it's that he never turns a blind eye to injustice. Just like the high schooler who couldn't stand by while his friends were bullied, the twenty-year-old So Mun cannot pass by those who torment the weak or the good. Who could stop this young man from doing what is right? So Mun still believes that if he simply does what he can, the lives of the people he meets will improve at least a little. But as the number of people he must protect grows, the shadows of increasingly powerful demons loom over him! He is determined to protect everyone, but he is also afraid. What if... the demon is stronger than me? His responsibilities and burdens grow as heavy as his abilities. However, his reliable colleagues are always by his side! That's right, it's not a lonely fight. He believes that if they are all together, no demon is scary anymore, and they can somehow protect their precious people. But in an instant, the boundary between good and evil collapses. The line between the precious person he wants to protect and the demon he must fight has blurred. Standing in So Mun's way now is Ma Ju-seok, who was once his benefactor and hero. Ju-seok, who threw himself to save So Mun's grandmother from falling off a roof, has completely changed due to rage after losing everything in a fraud case. Can the conviction to save everyone and the hope that a good inner self remains in Ju-seok be preserved?

After summoning the demon Ji Cheong-sin, Mo-tak returned to the police force. Thus began his double life as Detective Ga Mo-tak and Counter Ga Mo-tak. It was Yung's judgment that Mo-tak's return to the force would help Counter activities, given that demons only possess evil people. As he eliminates demons, Mo-tak's performance as a detective steadily builds up, since most cases that seem beyond human capability involve demons. Mo-tak always catches the culprit in a flash under the pretext of going to the bathroom. While his colleagues' suspicions grow, Mo-tak heads to the bathroom again today. There are just too many of those demon bastards! The problem is that Mo-tak's abilities as a Counter aren't improving as much as expected. Before So Mun appeared, Mo-tak was the number one Counter in Asia. After going through shock, anger, and depression, it should be time for him to accept his lacking skills, but Mo-tak's shining self-love never bends. Excluding personal feelings is a basic principle for a police officer dealing with criminals. For a Counter, a demon is just a demon, and it's natural not to get involved in personal emotions. Therefore, whether as a Counter or a police officer, there is no mercy in Mo-tak's eyes when he looks at a demon.

She smirks when she's happy, hides when she's sad, and gets angry when her emotions are caught. As a psychic who catches demons and reads others' memories, she punishes inhuman bastards with her fists instead of long words. With her unique grit, Ha-na shows the fastest progress in psychokinesis and speed training. Her desire to ease So Mun's burden and responsibility is the reason for her blood-sweating effort. In other words, Ha-na is actually a very warm person; she's just clumsy at exchanging 'emotions' with someone. Was it a coincidence or fate that Ha-na met her first love, Do-hwi, again? Do-hwi, who keeps approaching Ha-na with an innocent face, is someone who remembers her as the ordinary high school girl who laughed and cried, not as Counter Do Ha-na. As she spends time with Do-hwi, Ha-na finds herself smiling like she used to. However, with the appearance of powerful demons who have absorbed the Counters' abilities, her role as a Counter has become paramount. To her, such personal feelings are... yes, a luxury. But then, Do-hwi falls into danger because of a demon. As a Counter who has always done her best and as a woman trying to protect her first love, Ha-na throws herself into the fray to save him! No one can withstand a venomous Do Ha-na.

Ha-na's first love and a piano academy teacher. Ha-na was always the first love tucked away in a corner of Do-hwi's heart. After the tragedy that struck Ha-na's family in the past, Do-hwi silently stayed by her side while she was in a coma. One day, she suddenly disappeared and couldn't be found anywhere, but then she appeared before his eyes like a miracle! Without imagining that Ha-na is a demon-hunting Counter, Do-hwi brings up fresh memories of the past, but Ha-na, who feels quite different than before, draws a line between them.

Chu Mae-ok, Choi Jang-mul, Na Jeok-bong