Running Man: Song Ji Hyo Gets Angry At You Jae Suk For Revealing Her "Chun Sung Im Period"

"Running Man" You Jae Suk mentioned Song Ji Hyo's Chun Sung Im period, making her angry. 

On SBS "I Like Sundays - Running Man," the members dressed up as high school students with the theme of "legendary school backpack."

You Jae Suk, who teamed up with other members including Song Ji Hyo, said, "Ji Hyo has gotten quiter as she got older. She used to go all out when she was younger, especially during the Chun Sung Im period."

Song Ji Hyo said, "That's not true, don't believe him," at You Jae Suk. You Jae Suk jumped at Song Ji Hyo's reply.

On the other hand, Kim Min Jung pulled Lee Kwang Soo's hair, who had dressed up as a female high school student, making everybody laugh.