Personality: Odd is not enough to describe the demon known as Amaimon, The Earth King. This strange individual certainly stands out in a crowd of people, both physically and psicologically. He has interacted with humans very little in his life, leaving his people skills nearing zero, which, coupled with his fixating stare and often relaxed pose leads to a recipe for disaster. He takes nearly everything in life in a relaxed, laid back way, be it eating insane amounts of food, or fighting the son of satan. He rarely diverts from this mindset, his tone of voice bland and uninterested and his face with a very small plethora of expressions, but this does not mean he is emotionless. Amaimon is largely driven by his emotions and food, albeit not making it explicitly obvious in the way he expresses himself. This regularly does not cause much trouble, but some times, when his worst impulses kick in, such as disobeying his brother's clear orders when it comes not not killing anyone, they can become a bit of an issue. He eventually did not, but if left to his own devices he would have done so in a blink of an eye. He detests to lose, and grows angry when he is denied a way to change that, showing a somewhat competitive nature. Another thing that annoys him is people making fun of his hairstyle. He was called "Broccoli" more than once in the series, and it certainly was a thing that he did not take lightly to. He easily finds ways to distract himself from any duties he has to do, as he is a bit of an air head. Defects aside, Amaimon is a very curious person, and if he gets his eye on something that interests him slightly, he will be excited to research more on it and educate himself further. He loves to "play", but his definition of the word is probably different than what we see it. In his eyes, a deadly sword fight with Rin is a wonderful game, and he even shakes his rear at him, taunting him with Rin's sword in his posession, showing how relaxed and easygoing he is with things. In a future fight, after taunting Rin enough to the point of making him draw his sword, he is shown as very amused, letting out a loud cackle and sounding very excited when he went in to attack him head on.

All in all, Amaimon is a person demon vastly led by his desires, but other than his more problematic impulses and his odd solutions to boredom, his fixating stare, his dull emotionless face and bland tone of voice, not to mention deadly demonic powers, as is his birthright as one of the sons of satan.