Hiruma Yoichi
Another artwork by my little brother. At first, I didn't notice that it was his own hand drawing. But after he showed me the original artwork (before the editing process), now I believe that IT IS his own hand drawing. The name of the character is Yoichi Hiruma.
Yoichi Hiruma, usually referred to as Hiruma, is a protagonist and major driving force of the plot of Eyeshield 21. At the beginning of the series, he witnesses Sena Kobayakawa's running abilities and forces the boy to join the team as the ace running back, and hides his identity during games by having him use the codename "Eyeshield 21". He captains and plays quarterback for the series' protagonist team, the Deimon Devil Bats, but also serves the duties of a coach, as the team lacks one. He is responsible for arranging all of the Devil Bats' matches between the Spring and Fall Tournaments, and also devises the majority of the team's practice sessions. His major goal throughout the series is to form a complete team and win the Christmas Bowl with his first two teammates, Ryokan Kurita and Gen "Musashi" Takekura.
Hiruma has a deliberately demonic appearance that is even further accentuated by his daredevil attitude at both in and out of the football field, and is a subversion of the standard sports hero character archetype. In fact, his last name is spelled with a kanji meaning "leech demon," and his first name is spelled with a kanji meaning "bewitching one." His name can ultimately be read as "demon in broad daylight." He has dyed, spiky blond hair, fanged teeth, and pointed ears with multiple piercings. For various reasons, Hiruma is an intimidating person. He possesses a vast array of firearms, including but not limited to automatic rifles, flamethrowers, and bazookas. He frequently fires his guns into the air to intimidate others or simply when he is excited. He also tends to shoot at his teammates to make them practice harder, but it is implied that he does not use live ammo in these circumstances (Mamori once deflected a shot from Hiruma using nothing more than a clipboard). Despite his status as a protagonist, Hiruma is often described as "evil" by the other characters, including his comrades, and he has a reputation as a terrifying person throughout Deimon High School. This is not undeserved, as Hiruma has, through blackmail on virtually every person in the Tokyo area, acquired tremendous resources, including nearly complete control over Deimon High. He also seems to enjoy having his prized running back, Sena, to gain a fearsome reputation as Eyeshield 21 in the football field, as well as to some extent, outside of it. To this end, Hiruma often resorts to methods, that are hardly vied as legal (illegal hacking, disguising himself in the Eyeshield 21 attire, etc). In spite of this reputation, Hiruma's influence and behavior are frequently portrayed humorously, due to the fact that his actions tend to be over-the-top and presented lightly.
The article is derived purely (without any changes) from wikipedia.
Here's the picture of the original artwork: