Name: Yuri Shibuya normal Yuri
AKA: baseball boy, Your Majesty, wimp
Age: 15
Race: half human, half demon
Family: mother - Miko, father - Shoma, older brother - Shori, adopted daughter - Greta
Fiancée: Wolfram Demon King Yuri
Power: his other side has really powerful magic
Likes: baseball
Hates: war, injustice
Personality: nice, forgiving, and easy going
Yuri was an average high school boy until he tried to help out a guy he barely knows from bullies and got flushed down a toilet. He traveled across dimension inside the toilet and arrived at a strange, new land. He was found by Conrad and Günter. They told him that he is their King because of his black hair, eyes, and clothes. That he has the spirit of their Demon King and they have been waiting for his return. They need his power to help destroy all human enemies of their kingdom. After arriving at the castle, he slapped Wolfram for insulting his human mother. It turned out that was their way of proposing marriage among the nobles. After so many years of never had a girlfriend, he is now engaged to a guy! Yuri then agreed to become the new Demon King, so he can change their ways of solving problems in hope to prevent an all out war between the humans and the demons.
Yuri can also transform into his true Demon King form whenever he feels great anger. In this form, he can summon great magic even in human territories. He always passed out after his transformation and doesn't remember what happened afterward.
Name: Conrart WellerConrad
AKA: Conrad, Commander, The Lion of Luttenberg
Age: unknown, older than he looks
Race: half human, half demon
Family: mother - Cecilie, older brother - Gwendal, younger brother - Wolfram, father - Dan Hiri (dead)
Power: no magical power, strong fighter
Likes: protects his Majesty
Hates: ?
Personality: nice, calm, sweet, brave, and caring. He is like the world's most perfect guy.
Conrad is the second son of the former Demon Queen. His father was a human. On his 16th birthday, he chose to live the rest of his live as a demon instead of a human. He fought bravely for the demon side, and is one of the most loyal in the kingdom. He was also the one who brought Yuri's soul to Earth and came back two years later to observe the birth of the new Demon King. He was the one who gave Yuri his name. After Yuri came back to the Demon Kingdom, he acts as Yuri's bodyguard and vowed to protect him with his life.
Yuri is the only one who called him "Conrad". Everyone else called him "Conrart".
Name: Wolfram von BielefeltWolfram
AKA: the spoiled brat, little lord brat, selfish Pooh, the fiancée, the pretty boy
Age: 82
Race: demon
Family: mother - Cecilie, older brothers - Gwendal and Conrad
Fiancée: Yuri
Power: fire magic
Likes: to have his ways
Hates: humans
Personality: arrogant and short-tempered
Wolfram is the youngest son of the former Demon Queen. He hates humans, and hated the fact that Conrad's father was a human. Because of his pride, he wouldn't admit that Conrad is his brother, even though he does care for him. He takes his engagement a whole lot more serious than Yuri does. He follows Yuri everywhere to keep an eye on him. He gets extremely jealous whenever Yuri talks to a girl or a good-looking man, and is constantly worrying about Yuri cheating on him.
Name: Günter von ChristGünter
AKA: the most gorgeous man alive
Age: unknown
Race: demon
Family: adopted daughter - Giesela
Power: high magic
Likes: His Majesty
Hates: being away from His Majesty
Personality: nice, friendly, worrisome
Günter, along with the three brothers, helps Yuri run the country. He is like a teacher to Yuri. Teaching him about their kingdom's history and watches as Yuri do his paper work. Don't let his elegant looks and long, silvery white hair fool you. He's not a serious character at all, but rather a really silly one. He's constantly moping around the castle whenever Yuri is not around. Günter might not looks like it, but he is an excellent swordsman and has really powerful magic.
Name: Gwendal von VoltaireGwendal
AKA: the man with the wrinkles
Age: unknown
Race: demon
Family: mother - Cecilie, younger brothers - Conrad and Wolfram
Power: earth magic, cast barrier
Likes: cute things, knitting
Hates: lot of stuffs
Personality: grumpy
Gwendal is the eldest son of the former Demon Queen. Yuri seems to be afraid of him the most because he's always frowning when he's around Yuri. He looks like one of those serious and grumpy character, but he turns out to be one of the weirdest characters in this series. He loves cute things, especially animal with big, round, baby eyes. And he's deadly afraid of his childhood friend, Anissina because she always uses him in her crazy experiments.
Name: Guriere JosakJosak
AKA: the spy
Age: unknown; older than he looks
Race: half human, half demon
Family: unknown
Power: no magical power, great fighter
Likes: his country
Hates: ?
Personality: loyal, cautious
Josak is a childhood friend of Conrad. Like Conrad, he chose to live his life as a demon and is loyal to his country and the Demon King. Although he doesn't trust Yuri in the beginning. He was preparing himself for the worst if Yuri was anything like their last King. Yuri was able to win him over when he entrusted Josak with Morgif's jewel, the source of its power.
Josak is one of Yuri's close personal guards. He's normally undercover and comes out to help when there's danger. Even though he's tall and muscular, he doesn't seem to mind running around in women dresses.
Name: Cecilie von SpitzwegCecilie
AKA: Celi, ex Demon Queen, sexy queen
Age: unknown
Race: demon
Family: sons - Gwendal, Conrad, Wolfram; older brother - Stoffel
Power: high magic power
Likes: jewelry
Hates: war, politic?
Personality: nice, happy, flirty, someone who enjoys to be the center of attention
Cecilie is the former Demon Queen before Yuri. While she was queen, there was a great war between the demons and the humans. Even though she was against war, her brother, who was the Regent at the time, pushed for it. Later, she resigned the throne, so she can go on a journey in pursuit of free love. Her biggest regret was that she didn't make her own decisions while she was queen. She didn't want Yuri to make the same mistake she did.
Name: Anissina von KarbelnikoffAnissina
AKA: crazy Lady Anissina
Age: unknown
Race: demon
Family: older brother
Power: magic
Likes: inventing
Hates: ?
Personality: hyper, smart, bossy
Anissina is what you would called a crazy inventor. She's very smart, but all her inventions are a little bit off the wall. She tends to use Gwendal and Günter as guinea pigs in her experiments. Anissina is Gwendal's childhood friend and she's one of the very few people who can actually boss him around. All the guys are afraid of her and all the girls look up to her.
Name: Adalbert von GrantzAdalbert
AKA: American football player look alike
Age: unknown
Race: demon
Family: unknown
Power: magic, great fighter
Likes: revenge
Hates: the Demon Tribe, humans
Personality: hot headed, resentful
Even though Adalbert is a demon and a member of the 10 Aristocrats families, he hates the Demon Kingdom. He sided with the humans not because he likes them, but because he hates the demons more. He became resentful of the Demon Tribe after his fiancée, Julia, died because of the war. He wouldn't be considered a "bad guy". He's just a guy who's out for revenge.
