Rintaro Oka
| Birth Date: | October 21, 1998 |
| Height: | 5'7" |
| Year: | Freshman |
| Hometown: | Narita, Chiba |
| High School: | Shumei Yachiyo High Scool |
| Major: | Physical Education |
High School: Best 32 of Inter-High School Championship 2017(Doubles)
Personal: Son of Yoshiharu Oka...
