Keith stands out as one of the most eccentric mamodos featured in the series. Despite his youth, much like the other competitors, he has a distinctive habit of smoking a cigar and possesses a deep, low voice. His entrances are often marked by singing a nonsensical rendition of Beethoven's Ode to Joy, typically cut short as he gets blasted halfway through the song.
Keith takes immense pride in his abilities and once believed he could be considered among the Four Mamodo Prodigies, a group only adult mamodos could supposedly defeat. His encounter with Vincent Bari shattered this illusion, leading Keith to view Bari as his arch-rival from that point onward.
(Source: Zatch Bell!)
