- stage name: eunseo (은서)
- birth name: son juyeon (손주연)
- chinese name: en xi (恩熙)
- position(s): lead rapper, lead dancer, sub vocalist
- sub unit: joy
- birth date: may 27, 1998
- birth place: seoul, south korea
- zodiac sign: gemini
- blood type: b
- height: 168cm (5ft. 6in.)
jun 19 2017 ∞
jun 20 2017 +