| idol_id | 1097 |
| Selca owner | |
| Pop type | K-pop |
| Stage name (romanized) | Sion |
| Stage name (original) | 시온 |
| Real name (romanized) | Kim Sion |
| Real name (original) | 김시온 |
| Birth date | 1998-12-17 (age 27) ▲ ▼ |
| Chinese zodiac sign | 🐅 Tiger |
| Western zodiac sign | ♐ Sagittarius |
| Hometown | Gunsan |
| Height | 163.0cm (5'4") ▲ ▼ |
| Weight | 46.0kg (101lb) ▲ ▼ |
| Blood type | A |
| Debut date | 2017-03-21 (9 years and 6 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | Roles | |
|---|---|---|---|---|---|---|---|
|
Saturday (세러데이) | SD Entertainment | 2018-07-18 | 2025 | Group disbanded | Main vocal |