Demian is part of one of the biggest families in hell, but after failing his final test to finally be the king of hell he was sent to the cyberverse, after learning about this extremely weird place and adapting there, he saw a new universe popping out. He went to visit this place several times, and after a while, he was known as a very dangerous person with an assassination career so he was asked to kill Keiko for threatening all his workers like tools, after thinking about it he thought it would be funnier to do a soul trade since he was starting to get bored in how easily his work was. He did the soul swapping and now he has to teach Be and Keiko actually become better and adapt to this place

He is extremely flirty with everyone, joking or serious, somehow he always gets what he wants. Demian tends to do random pranks on people close to him, or take advantage to teach them a lesson at some specific moments, he can be an asshole but at least he teaches you something, basically, Demian is one of those who you will never spect to be actually serious but when he does, he gives some good tips. 

Demian can be really nice and all but when he gets mad he explotes, he just starts stressing out making an extremely big mess and hurting others in the way, nowadays this hasn't happened a lot but when it does he turns into a kid version of himself, representing that small soft spot he haves for people he actually cares about

• Demian haves really veiny hands, this is due to him rarely using his demon magic

• He is bisexual

• Demian is an artist, he likes drawing as a hobby and has a lot of characters that he uses to camouflage in different places

• Demian is a furry canonically, his real fursona is a really buff goat with 3 eyes

• He loves goats, they are his favorite animal ever in all of existence

• Demian makes a lot of stupid sexual jokes, but if someone ever feels uncomfy he would normally stop and just be annoying with anything, even with two pieces of paper he can annoy anybody

• Demian haves a pet named Gummi, that name is in memory of an old companion of his

• He haves a spell in him that doesn't let him leave the cyberverse, in his chest, there is a star-like figure made of his body, this haves some of his nerves attach to him so any time he tries to leave, he received the biggest shock in his nervous system, making him fade out of the pain.

• His two earings were a gift he got from Be, and since he got them he never takes them away

• At some point in his life Demian meet a really weird person that teaches him a lot of important things, he can't really remember who he always follows his example