Birthday: March 7 (Pisces)
Height: 165 cm (5' 5")
Weight: 54 kg (119 lbs)
Blood type: O
Hair color: black
Eye color: brown, blue

Sakamichi Onoda is the protagonist of the series and high school freshman. He is a member of the Souhoku High School Bicycle Club and a climbing specialist. He is also evidently an anime otaku.