The workplace comedy-drama series is about what happens when a man finally gets a chance to lord over a previous boss, who made his life miserable during his rookie days with his old school ways.

[3][4] Kkondae Intern is an office comedy that depicts a man's delightful revenge on his previous boss, who was also his worst manager.

With his sheer hard work, he develops a chicken noodle recipe — which becomes a top product — and gets elevated to the position of general manager.

Lee Man-sik (Kim Eung-soo) is a manager in the Ongol Ramen Department, and has a reputation as a "terror senior".

A reversal of fate occurs, and now Lee Man-sik starts working as an intern at the same company and is assigned under Ka Yeol-chan.