"This young giant is capable of ground-shaking skills."
Inazuma Eleven 2
"This junior high school giant boast earth-shaking power."
Inazuma Eleven Strikers
"This high school giant boasts earth-shaking power."
He has a strong and quite muscular body which makes him a strong defender. He is very tall and has tanned skin. He has curly black hair (dark purple in Ares) and wears a gray cap with goggles attached to it that cover his eyes.
His team lost in the Football Frontier preliminaries finals to Raimon by a score of 1-2. In the Nationals, his team was crushed by Zeus 10-0.
In the manga only, Oono Densuke was a candidate for Inazuma Japan. He played in the selection match as part of Nippon Daihyou Kouho B, although he was ultimately not chosen for Inazuma Japan.
Inazuma Eleven Ares no Tenbin
He once again played with his team in the Football Frontier against Raimon. He was angry at Shimerigawa when the latter wanted to have Sakuma's captain armband. After Shimerigawa ordered the defenders to stop Raimon's shoots when all of them tried to attack at the same time, Oono, along with Narukami and Banjou tried to stop their shoots with their bodies. They stopped all of the normal shoots, except Asuto's, who used Inabikari Dash to get past Kazemaru. In the end, his team lost with a score of 3-4.