| idol_id | 220 |
| Selca owner | akb48_ryoochan |
| Pop type | J-Pop |
| Stage name (romanized) | Ryoochan |
| Stage name (original) | りょーちゃん |
| Real name (romanized) | Oshima Ryoka |
| Real name (original) | 大島涼花 |
| Birth date | 1998-10-21 (age 27) ▲ ▼ |
| Chinese zodiac sign | 🐅 Tiger |
| Western zodiac sign | ♎ Libra |
| Hometown | Kanagawa |
| Height | 152.0cm (5'0") ▲ ▼ |
| Weight | |
| Blood type | |
| Debut date | 2011-09 ▲ ▼ |
| Country of origin | 
Japan |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
AKB48 | AKS | 2005-12-08 | No |