A retro office comedy depicting the chaotic events that unfold in the late 1990s when Sammo Hung, a 30-year-old elite securities supervisor who only cares about work, goes undercover as a 20-year-old high school graduate employee at a securities firm where suspicious money flows are detected.

• Park Shin-hye
• Go Kyung-pyo
• Ha Yoon-kyung
• Cho Han-gyeol
• YUNA
• Lee Duck-hwa
• Kim Hyeong-mook
• Kim Won-hae