| idol_id | 2064 |
| Selca owner | |
| Pop type | K-pop |
| Stage name (romanized) | Merci |
| Stage name (original) | 메르시 |
| Real name (romanized) | Ma Xitong |
| Real name (original) | 马西桐 |
| Birth date | 2011-05-31 (age 15) ▲ ▼ |
| Chinese zodiac sign | 🐇 Rabbit |
| Western zodiac sign | ♊ Gemini |
| Hometown | Huzhou |
| Height | |
| Weight | |
| Blood type | |
| Debut date | 2026-10-13 ▲ ▼ |
| Country of origin | 
China, People's Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
| A2O Lite (에이투오 라이트) | A2O Entertainment | 2026-10-13 | Yes |