Sungjae is a clumsy, careless, but bright pupil at K-pop Academy, eager to learn about the arts of K-pop in order to become a K-pop star himself. He is nicknamed at school - even by several of the teachers as "The Incompetent Idol", but over the three years, he overcomes many adventures and usually manages to save the day. With his best friends Ilhoon, Eunkwang, Minhyuk, Changsub, Hyunsik, as well as transfer student from America Peniel, they work together, and go through all sorts of obstacl

Sungjae thinks that entertainment business is nothing but endless torture to his life. He wants to reverse the time and choose another path. But does he make a right decision? Find out as he ends up in a strange land and begins maturing and becomes more adult-like.

16-year-old Alfie has just won the competition tvN Kpop Star Hunt and is now entering the city of Seoul, also known as the Mecca of Kpop, after having won a contract with Cube Entertainment and finishing middle school. Now it is up to him to make his dream of becoming a K-pop star come true as he goes from intense vocal and dance training to Korean language improvements, fashion lectures and crazy makeup procedures...