| idol_id | 2031 |
| Selca owner | |
| Pop type | K-pop |
| Stage name (romanized) | Chaei |
| Stage name (original) | 채이 |
| Real name (romanized) | Yoon Sooin |
| Real name (original) | 윤수인 (尹秀寅) |
| Birth date | 2005-07-21 (age 20) ▲ ▼ |
| Chinese zodiac sign | 🐓 Rooster |
| Western zodiac sign | ♋ Cancer |
| Hometown | |
| Height | 164.0cm (5'5") ▲ ▼ |
| Weight | |
| Blood type | |
| MBTI | ENTJ |
| Debut date | 2026-05-28 (1 month ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
Heart of Woman (하트오브우먼) | Blue Brown Records | 2026-05-28 | Yes |