Kwong-Soo Chong (born February 4, 2022) is the eldest adoptive child of Zhao and Makiko Chong. She was born in Ulsan, South Korea.
- Father: Zhao Chong (1990-)
- Mother: Makiko Chong (née: Tuki) (1998-)
- Brothers: Jung-Dee Chong (2024-), Adam Chong (2031-)
- Sisters: Moo Chong (2026-), Meng Chong (2027-), Fuju Chong (2029-), Zaza Chong (2034-), Lisa Chong (2035-)
- Grandmothers: Chong (née: ) ( -), Yuki Tuki (née: ) ( -)
- Grandfathers: Chong ( -), Arata Tuki ( -)