<Korean TV Series NOW> ”Good Boy” EP13, Kim Seohyun makes a decision = Viewership rating 6.7%, Synopsis and spoilers

*This article contains spoilers. In episode 13 of the JTBC TV series "Good Boy" (viewership rating: 6.7%), Dong-ju (Park Bo-Gum) falls unconscious and is taken by a powerful
The situation of the special team is getting worse. The unrest of the city's organized crime gangs and gangsters, who are after huge bounties, is increasing the anxiety of the citizens, and the police are being investigated for drug use and the use of lethal weapons.
Seok-chu followed Dong-ju, who was wanted for a violent act. Furthermore, Seok-chu followed Gold Rabbit (Kang Gil-Woo), who was being escorted to the Supreme Prosecutor's Office to testify in relation to Juyeon (Oh Jung-Se).
In the meantime, Juyeon has even bribed the Chief of the Investigation Division of the Supreme Prosecutors' Office, and under the pretext of investigating a huge amount of illegal funds, the prosecution and police of Inseong City have gathered together.
A joint investigation headquarters was set up to investigate the case. Hanna (Kim Seohyun) was angry at the sight of Dong-ju, who was completely left behind and injured, and made a decision.
Having secretly investigated a past case related to the death of her father, who was a government official, she traces the details of a suspicious real estate transaction and discovers that Juyeon's cartel base is in Geummu, the center of Inseong City's redevelopment project.
Hannah infiltrates the city of Gwangju alone with a gun and ammunition, and calmly aims for Juyeon, taking control of her breathing just like she did when she was an athlete.
Magui (Lee Ho-jung), who had been a victim of the robbery, bursts in. It turns out that the "girlfriend" who appeared as a condition of Juyeon's deal with the devil is actually her sister, who had Magui adopted overseas.
She gave Maggie up for adoption, not knowing that the family had a drug problem, and Maggie had a hellish upbringing in which he sought revenge against his sister.
However, her sister was addicted to the "candy" she made in her shabby one-room apartment, and the culprit was Juyeon. Juyeon had to force Magui to give in and, from somewhere,
After receiving the call, Hanna sensed something suspicious. Losing her cool, she quickly pulled the trigger, but the bullet missed. Nevertheless, after fending off Juyeon's men, Hanna
Juyeon shouted his name in front of him. Juyeon said he had no solid evidence and was confident that even if he had evidence, he would not be caught. However, Hanna recorded Juyeon's confession through the body camera.
The police channel broadcast the same image of the suspect, which quickly spread through social media. When Juyeon's anger reached its peak, he was confronted by Russian mafia boss Leo (Ko Ji-hyun).
While Leo was executing the traitor Sergei, he heard Juyeon confess that it was Juyeon who killed his father. Leo, who had been deceived by Juyeon until now, turned to Juyeon and
He shoots his gun, saving Hannah and Maggie, then leaves the scene and disappears, leaving behind a digital camera that recorded the last moments of Hannah's father.