Xu Ziyin

She has studied Bel Canto for 6 years.

Xu Ziyin revealed she put more effort in the dance when preparing for her demo stage in Girls Planet 999 because she thinks she can sing well.

Despite her survival after the second elimination, Xu Ziyin left Girls Planet 999 due to health problems.

Dreamcatcher's Handong visited Xu Ziyin and they had a meal together before she returned to Korea for her group's activities. The two have met during their time in Youth With You 2.

Her nickname is "Rou" which means "meat" in Chinese.