One of�Choo Sarang's beauty secrets is none other than pinching her nose as shown in preview cuts for KBS 2TV's 'Superman is Back'!

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Choo Sarang followed Choo Sung Hoon and playfully pinched her nose with her thumb and index finger. He explained his idea behind this, sharing, "I heard that if you pinch your nose when you're little, [the bridge of] your nose will be higher, so I made it fun for Sarang to follow." She adorably followed along as she gave it the name, "Co-ping~ Co-ping~['co' means 'nose']," giggling as she pinched her nose.

Stay tuned for more of Choo Sarang's adorable moments this Sunday at 4:50 PM KST!