| idol_id | 2038 |
| Selca owner | takaneko_richan |
| Pop type | J-Pop |
| Stage name (romanized) | Richan |
| Stage name (original) | りちゃん |
| Real name (romanized) | Higashiyama Erisa |
| Real name (original) | 東山 恵里沙 |
| Birth date | 2006-05-28 (age 20) ▲ ▼ |
| Chinese zodiac sign | 🐕 Dog |
| Western zodiac sign | ♊ Gemini |
| Hometown | Gifu |
| Height | 157.0cm (5'2") ▲ ▼ |
| Weight | |
| Blood type | AB |
| MBTI | ISFP |
| Color | Orange |
| Debut date | 2022-10-26 (3 years and 11 months ago) ▲ ▼ |
| Country of origin | 
Japan |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
Takane No Nadeshiko (高嶺のなでしこ) | Twin Planet Entertainment | 2022-10-26 | Yes |