Appearance: Chapter 246 (Prince Of Tennis - Volume 28), Episode 14 (Prince Of Tennis: The National Tournament)
Birthday: March 17 (Pisces)
Blood Type: Type O (Prince Of Tennis - Volume 35, Chapter 308) or Type B (Prince Of Tennis 40.5, PairPuri Volume 3 - Family)
Family: Father (Oshitari Souya), mother (Oshitari Mariko), younger brother (Oshitari Shouta), iguana
Height: 177 centimeters
Name: 忍足 謙也 Oshitari Kenya
Nickname: Naniwa's Speed Star, Speed Star of Naniwa
Quote: "No speed, no life."
Voice: 福山 潤 Fukuyama Jun
Weight: 63 kilograms

Notes:
- he is right-handed
- his eyesight is 2.0 for both eyes
- he specializes in speed tennis
- his playing style is counter puncher
- his favourite brand name shoes and racket are Bridgestone's Arch Power Dura Heat and Bridgestone's Wingbeam S65
- his father works as a private doctor
- he went to Doutonbori Daini Elementary, when he was an elementary student
- he is currently attending at Shitenhouji Middle School
- he is one of the third year students in Class 3 (Seat 5)
- his best subjects are English and math
- his worst subject is world history
- his favourite place to visit at school is the broadcasting room
- he is part of the broadcasting committee
- he likes window shopping, the colours red and white, the sinewy meat in oden, vegetable juice, comics about motor racing, and rap music
- he dislikes having to wait in general
- he spends his allowance on hair dye
- at the moment, he wants a new belt
- everyday he takes care of his pet iguana
- he can play the drums very well
- he prefers those who are innocent
- if he were to go on a date, he would go to the amusement park and ride roller coasters
- he uses interesting erasers
- he has a habit of spinning his pen really fast, and it is unknown how fast he can go when he does it
- apparently the movie Speed was the reason why he began to do things more hastily
- he takes off his ankle weights when he starts to play seriously