Yeri and NCT’s Mark have fun on Instagram

Yeri along with NCT’s Mark engaged in playful banter on Instagram.

On February 4 Red Velvet’s Yeri shared a picture from her stream of Mark’s newest single , ‘Child’, on her Instagram story. She captioned it:

“Mark, you’re looking good. grown up.”

On February 5, Mark replied to her Instagram post, saying:

“I’m already taller than you.”

Yeri and Mark were both born in 1999 . However, Yeri was a trainee in SM Entertainment before Mark. Yeri was known to mock Mark as being short before he was a trainee and this witty joke on social media has won the hearts of many internet users by recalling their friendship from childhood.