High School King of Savvy

Lee Min-suk (Seo In-guk) is a high school student and varsity ice hockey player. He and his older brother, Hyung-suk, look very much alike despite their nine-year age gap. When he gets a mysterious phone call from Hyung-suk telling him to impersonate him at the latter's new job, Min-suk is forced to pretend to be a high-ranking executive at an IT conglomerate. Living a double life while unaware of the rules within the Korean workplace, Min-suk learns how to navigate his way in the world of adults with the help of Jung Soo-young (Lee Ha-na), a temp with an odd personality whom he eventually falls in love with.