<Korean TV Series NOW> ”Undercover High School” EP10, Seo Kang Joon finds the identity of the gold nugget = Viewership rating 5.4%, Synopsis/Spoiler

※This article contains spoilers. In EP10 of the MBC TV series "Undercover High School" (viewership rating: 5.4%), Hye-sung (Seo Kang-Joon) and Myung-ju
The identity of the gold nugget that Kim ShinRock (Kim ShinRock) was desperately searching for is revealed. Back at school, Myung-ju already knows the keyword that Hye-sung found regarding the fourth ghost story.
With her return, Hye-sung was expelled and even Soo-ah (Jin Ki Joo) was warned that she could become a danger. The NIS's four domestic teams were also placed on standby and notified of their dissolution.
Nevertheless, the four domestic teams began to uncover the truth behind the fourth ghost story. Hye-sung, disguised as a delivery man, noticed that the bust of Seo Byung-moon at the school was moving. Myeong-ju also
Learning that there was a secret location for the bust, they immediately headed to the school. Hye-sung, who had arrived first, blocked the entrance to stop Myeong-ju from entering, saying that a spy had infiltrated. Hye-sung
He turns the key and goes underground, only to find that the gold is gone. There is a skeleton called "The Body." The watch that Hye-sung gave to her father when she was a child is still there. The watch that Hye-sung gave to her father when she was a child is still there.
Upon finding the body, Hye-sung burst into tears and set her sights on the truth behind the death.