| idol_id | 103 |
| Selca owner | akb48_hamachan |
| Pop type | J-Pop |
| Stage name (romanized) | Hamachan |
| Stage name (original) | はまちゃん |
| Real name (romanized) | Hama Sayuna |
| Real name (original) | 濵咲友菜 |
| Birth date | 2001-08-20 (age 22) ▲ ▼ |
| Chinese zodiac sign | 🐍 Snake |
| Western zodiac sign | ♌ Leo |
| Hometown | Shiga |
| Height | 145.6cm (4'9") ▲ ▼ |
| Weight | |
| Blood type | A |
| Debut date | 2014-04 ▲ ▼ |
| Country of origin | 
Japan |
| Name | Company | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|
|
AKS | 2005-12-08 | No |