| Full Name | Hanabashi Rio |
| Stage Name | Rio |
| Native Name | 花橋リオ |
| Birthday | February 4, 2002 |
| Age | 23 years and 4 months old |
| Zodiac Sign | Aquarius |
| Birthplace | Aichi Prefecture, Nagoya, Japan |
| Height | 5’3″ (159 cm) |
| Weight | – |
| Blood Type | B |
| MBTI | ENFP |
| Education | – |
| Languages | Korean, Japanese |
| Group | NiziU |
| Social Media | – |