- Real Name: Kong Yujin
- Stage Name: Kongyoo (공유)
- Position: Vocalist+Maknae
- Born: May 11th 2001
- Nationality: Korean
- Height: 163cm
- Zodiac Sign: Taurus
- Blood Type: B
- January 1st 2017 [BONUSbaby 1st Digital Single 우리끼리(Urikiri)]
- Favorite color: White & Black.
- Moved to China when she was 9 months old, isn’t very fluent in Korean due to that.
- Won gold medals in singing contests in Shanghai, Weihai, and Jinan.
- Loves Hip-Hop music.
- Languages: Chinese, English and Korean.