Undercover High School Season 1 Episode 6

Undercover High School Season 1 Episode 6 SerialGo Watch Online Streaming — The school security guard dies, leaving Hae Seong a notebook that belonged to his missing father. The revelation is shocking, and he heads to NIS for answers. The answer pulls him away from his mission, and he takes a break. However, he decides to continue, only to return and discover that Su A witnessed everything.