| idol_id | 510 |
| Selca owner | melodyday_yein |
| Pop type | K-pop |
| Stage name (romanized) | Yein |
| Stage name (original) | 예인 |
| Real name (romanized) | Yang Yein |
| Real name (original) | 안예인 |
| Birth date | 1995-05-04 (age 29) ▲ ▼ |
| Chinese zodiac sign | 🐖 Pig |
| Western zodiac sign | ♉ Taurus |
| Hometown | Seoul |
| Height | 168.0cm (5'6") ▲ ▼ |
| Weight | |
| Blood type | A |
| Debut date | 2014-02-25 (10 years and 9 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
Melody Day (멜로디데이) | Loen Entertainment, Creker Entertainment | 2014-02-25 | 2018-12-26 | Group disbanded |