Im Si Wan revealed that he used to be top of his class and vice president of his school.

On an episode of KBS 2TV '1 Against 100' that aired on August 13, ZE:A's Im Si Won revealed that he used to be a model student in his school days.

When MC Han Suk Joon asked what kind of student he was in school, Im Si Won answered, 'I was the class president from elementary school to high school. I've also been the top student in school, and in middle school I was the vice president.

He continued, 'I studied hard in school because I thought that I wouldn't have to study once I got into college.' He said, 'I was participating in a song festival when I met my agency, and eventually debuted as a singer.'