- Stage Name: Yamy
- Real Name: Guo Ying (郭穎)
- Birthdate: October 7, 1991
- Birthplace: Foshan, China
- Height: 165cm
- Weight: 47kg
- [2017.09.13] AY
- [2017.10.31] Wūyā (烏鴉; Crow)
- [2018.10.15] Wàn yoo Yǐnlì (万yoo引力; Yoo Gravity)
- [2019.11.20] Zhúlín Yǐn Hǔ (竹林隐虎; Hidden Tiger in Bamboo Forest)
- She is a member of KuQika Orchestra.
- She placed 5th on Produce 101 China with 108,780,982 votes.