| idol_id | 1203 |
| Selca owner | nmb48_otariona |
| Pop type | J-Pop |
| Stage name (romanized) | Riichan |
| Stage name (original) | りいちゃん |
| Real name (romanized) | Ota Riona |
| Real name (original) | 大田莉央奈 |
| Birth date | 2003-03-12 (age 21) ▲ ▼ |
| Chinese zodiac sign | 🐑 Goat |
| Western zodiac sign | ♓ Pisces |
| Hometown | Osaka |
| Height | 160.0cm (5'3") ▲ ▼ |
| Weight | |
| Blood type | |
| Debut date | 2018-01 ▲ ▼ |
| Country of origin | 
Japan |
| Name | Company | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|
|
Showtitle | 2010-10-09 | No |