Suh Un, Suh Joon, and Ji On dress in matching vests in preview cuts for 'Superman is Back'

Suh Un, Suh Joon, and Ji On continued their play date on the upcoming episode of KBS 2TV's 'Superman is Back'!

The children dressed in matching vests and sat together with dog Sae Bom, drawing laughs with their adorable likeness. But when it was time to leave, Suh Un and Suh Joon refused by running around the house to which Lee Hwi Jae joked, "Are you going to live here?", showing how close the same-age friends got during their play date.

Stay tuned for more of their adorableness this Sunday at 4:50 PM KST!