Actor Kim Ji Hoon surprised viewers after details about his strong academic record were revealed, including an IQ reportedly above 150 and a college entrance exam score that placed him among South Korea’s top students.

Kim Ji Hoon appeared on the YouTube channel Yoo In Radio on September 2, where Yoo In Na brought up his school years and academic performance.

During their conversation, Yoo In Na asked, “You were good at studying when you were in school. Your IQ was also over 150, and didn’t you score somewhere in the high 350s out of 400 on the college entrance exam?”

According to the program, a score of around 350 on the 2000 College Scholastic Ability Test was considered within approximately the top 1% nationwide at the time.

Kim Ji Hoon explained that he had worked extremely hard for the exam, although he had originally hoped to score even higher.

He said, “I really did everything I could. Actually, I expected a slightly higher score. I thought about taking the exam again, but the idea of studying for it one more time felt too difficult.”

The actor also revealed that he consistently ranked near the top of his class.

“I don't think I ever fell below third place in my class,” he shared.

His comments led Yoo In Na to joke about how his classmates must have felt about someone who was both academically successful and good looking.

She said, “What would people at school even say? You study well and you look like that. It would be annoying.”

However, Kim Ji Hoon played down the compliment and described himself very differently during his teenage years.

He replied, “I was just a timid kid. Especially in high school, I had a lot of acne, probably because of hormones, and my eyesight was bad, so I wore glasses.”

Soran's Go Young Bae jokingly responded that if he had been Kim Ji Hoon's classmate, he would have gone home to practice guitar and singing while hoping, “Please let Kim Ji Hoon be bad at singing.”

Kim Ji Hoon also spoke about his disciplined personality during the episode. He explained that many of his long term fitness challenges are connected to his goal of becoming a better actor, particularly when preparing his body for action scenes.

Despite his image as someone who constantly works on improving himself, Kim Ji Hoon jokingly admitted that his everyday life can be much more ordinary, revealing that he also spends time lying on the sofa and watching YouTube at home.