Choo Sarang celebrates her birthday in preview cuts for 'Superman is Back'

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The still cuts released show Choo Sung Hoon, Yano Shiho, and Choo Sung Hoon's younger sister Choo Jung Hwa preparing a surprise birthday party with decorations, hats, and sunglasses. They were also said to have decorated the living room with Choo Sarang's favorite Mickey Mouse while Choo Sarang and her grandma enjoyed a date outside.

But when the oblivious Choo Sarang came back home and was welcomed with her family saying, "Sarang! Happy birthday," she froze due to the overwhelming surprise. But once she received a special phone call and video message, Choo Sarang started smiling again. Yano Shiho also shed tears in joy while congratulating her one and only daughter on her birthday.

Stay tuned for Choo Sarang's birthday party this Sunday at 4:50 PM KST!