Unagi

is a former Academy student of Konohagakure.

Personality
He was a very close friend of Hibachi's and despite thinking that his insults and tricks on Naruto were mean he found them funny.

Appearance
He was a bespectacled boy with long brown hair. He wore a blue track suit, with a yellow collar and a white shirt underneath, a pair of pants, sandals and a green band around his forehead.

Past Arc: The Locus of Konoha
When Hibachi tricked Naruto into going in the hills for an item from a corpse, Hibachi tells him that there were still ninja there. He tried to stop Shikamaru when he was going to tell Iruka of Hibachi's trick which he heard of but Shikamaru did so anyways.

Paradise Life on a Boat
Unagi was one of the children that took part in Kiba's race for candy when they were Academy students.

Trivia

 * means 'eel'.