Elementary school: Domyouji Elementary School
School: Shitenhouji Chuu (3-8, #9)
Height: 170cm
Weight: 60kg
Foot Size: 26cm
Eyesight : 0.03 in both sides
Birthday (Sign) : November 9 (Scorpio)
Blood type : B
Hand :Right
Special Technique : IQ Tennis, Comedy Tennis
Favorite Food : Prunes
Hobbies :Finding joke material
Family: Father, Mother, Elder Sister
Father’s Occupation : University Professor
Committee : Student Council (Treasurer)
Favorite Subject : Math
Worst Subject: None
Most visited spot in the school: Toilet
Spends allowance on: Going to see Manzai
Motto: Pink Unrequited Love ♥
Favorite Movie: SFX movies
Favorite Book: Einstein's books
Favorite Music: Cute idol music/songs ♥
Favorite Color: Yellow-green, Pink
Favorite type of girl: Cute girls ♥
Favorite date spot: Romantic Places ♥
Most desired item : Ex-cite-ment ★
Daily Routine: Winking Practice
Dislikes : Clumsy (plain) Men
Other Special Skills : Hakase to Joshu Play (Professor and Assistant Play)

Koharu uses data tennis, determining how to counter shots with his two hundred IQ.