| idol_id | 1624 |
| Selca owner | babymonster_ruka |
| Pop type | K-pop |
| Stage name (romanized) | Ruka |
| Stage name (original) | 루카 |
| Real name (romanized) | Kawai Ruka |
| Real name (original) | 河井 瑠花 |
| Birth date | 2002-03-20 (age 23) ▲ ▼ |
| Chinese zodiac sign | 🐎 Horse |
| Western zodiac sign | ♓ Pisces |
| Hometown | Yamaguchi |
| Height | |
| Weight | |
| Blood type | |
| MBTI | ISTJ |
| Debut date | 2023-11-27 (1 year and 11 months ago) ▲ ▼ |
| Country of origin | 
Japan |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
BabyMonster (베이비몬스터) | YG Entertainment | 2024-04-01 | Yes |