<Korean TV Series NOW> ”Good Boy” EP3, Kim Seohyun and others join forces to become a complete group = Viewership rating 5.6%, Synopsis and spoilers

*This article contains spoilers. In tvNTV series "Good Boy" EP3 (viewer rating 5.6%), Juyeon (Oh Jung Se) is an ordinary Korean customs official.
From Dong-ju (Park Bo-Gum) awakening after learning the true identity of the group, to the sudden decision to join forces with Hanna (Kim Seohyun) and Jong Hyun (Lee Sang Yi) as a powerful special team, the Good Vengers are complete.
The story depicts how Dong-ju was forced to clear the false charges of his junior, Kyung-il (Lee Jung-ha), who was a promising boxer.
It was urgent to find the hit-and-run vehicle. While searching every scrapyard in Inseong City, unexpected tragic news came. Kyung-il left a suicide note.
He hanged himself in his cell. However, Dong-ju did not believe that he had committed suicide. Among his belongings, it was not Gyeong-il's, but Juyeon and the Golden Rabbit (Kang Gil-Woo) who were carrying the sword.
The gold watch was found. There was another person who recognized the watch. It was Hannah who remembered that it had also been found in the belongings of her father, who was a police officer.
Jong Hyun also had doubts about the Kyung Il case. The prosecutor in charge closed the case as a suicide within two hours, and the prison guard in charge lost contact.
During the "Rabbit Hunt" operation to catch the gold rabbit, Jong Hyun learned of a leak within the National Police Agency and reported to his superiors that this case was also related to that, but they replied, "I'm just watching.
Then, the inside story of the Gyeong-il case was revealed. The prison guard who was watching over Gyeong-il said, "We must eliminate any factors that cause anxiety."
He killed Gyeong-il in his cell due to the implicit threat, but lost his gold watch in the process. Juyeon, who received it as Gyeong-il's legacy, said, "There will be no next time," and brutally beat up even the prison guards.
Hanna, who has doubts about her father's death, and Jong Hyun, who is suspicious of the police agency, decide to join the special team to investigate the case properly.
It became complete.