sunghoon

Sunghoon is a brilliant and ideal agent in the National Intelligence Service. He is fast, strong, muscular, and incredibly handsome. He is rich and has a sister named Giselle who attends Byungmun International High School.

And you, Julie, are beautiful to death, spoiled, strong, fast, fun-loving, and funny. You're a teacher at Byungmun High School.

Seunghoon and his bandmates: Yeonjun, Nicki, James, and Sila
When they learned there was 19 million worth of gold, Seunghoon decided to pretend to be a new student at the school, even though he was 24 years old but looked younger. He disguised himself as a new student to get the gold, but he would face difficulties because President Yoona was also searching for the gold.