Seo Kang Joon returns to ”Undercover Highschool” after 4 years... ”Awkwardness and pressure. I don't feel like I'm on air”

Actor Seo Kang Joon shared his thoughts on returning after four years. On the morning of the 25th, on MBC Radio FM4U's "Lee Seok Hoon's Brunch Cafe", he talked about his thoughts on the TV series "Undercover High School".
Seo Kang Joon and Jin Ki Joo from "The 1st Generation" appeared on the show. On this day, Seo Kang Joon said, "It's been four years since I last appeared on the show, so it's still a bit awkward and burdensome. Even though we're on air, I sometimes wonder if we're really on air.
Regarding why he chose "Undercover High School" as his comeback work after four years since his military discharge, Seo Kang Joon said, "When I first saw the script, I was surprised by the genre.
There were a lot of them. There were a lot of diverse genres such as action, comics, romance, and human, and they were not dizzying but were exquisitely well-combined.
However, I chose it because I felt it was a good piece that seemed to have a message to convey."