| idol_id | 1387 |
| Selca owner | lightsum_yujeong |
| Pop type | K-pop |
| Stage name (romanized) | Yujeong |
| Stage name (original) | 유정 |
| Real name (romanized) | Lee Yujeong |
| Real name (original) | 이유정 (李宥姃) |
| Birth date | 2004-06-14 (age 20) ▲ ▼ |
| Chinese zodiac sign | 🐒 Monkey |
| Western zodiac sign | ♊ Gemini |
| Hometown | Seoul |
| Height | 162.0cm (5'4") ▲ ▼ |
| Weight | 41.0kg (90lb) ▲ ▼ |
| Blood type | AB |
| MBTI | ISTP |
| Debut date | 2021-06-10 (3 years and 6 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
Lightsum (라잇썸) | Cube Entertainment | 2021-06-10 | Yes |