Traitors.

Yellow is the heir to the Throne of Peace. He has yellow hair and light yellow eyes. He has a light yellow halo on his head, and wings and a tail on the back. He is 180 cm tall. He is a bit simple-minded, but already prepared for rule. He is friends with Red, Blue, and White, but especially with Red. He trusts Red completely, and Yellow always knows where Red is.

Brown is the son of Dark Green, and Brown himself had two sons: Yellow and Light Yellow. Light Yellow was the younger and should not have ascended to the throne, but even so, his loss deeply affected Brown. Now, Yellow is still the heir to the throne, but he is also friends with Red, considering him a great friend, albeit a traitor. Dark Green is wary of this Red, as he is still Black's grandson, but Brown already sees him as his lost son.

Millions of years ago, two brothers were born: Black and Dark Green. Dark Green wielded light magic, bringing light and peace, but Black… Black wielded darkness itself. This darkness consumed him, and soon he began to destroy cities and the entire race of peaceful people. Dark Green tried to stop him, but the light he used was weaker than the darkness. A war began. The darkness consumed several million peaceful people, leading this race to be called "Traitors." The war raged for a long time, until Dark Green finally created a dome of light that prevented the Traitors from entering peaceful territory. Many clans: Ice, Fire, Spiders, Wind, and many others fell under the influence of the traitors, and soon they themselves became traitors. The Dark Clan began to rule over all the traitors, and soon Black had a son, Maroon. Maroon, or as he was also called, Niostolir, inherited all the darkness from Black, and when he turned 1,000 years old, he became ruler. When Niostolir was 10,000, he had a son of his own, Red. Since childhood, Red had been emotionless, and everyone thought this was a good thing, because then he would surely not care about the lives of these peaceful people. But as the years passed, Red became increasingly resistant to the darkness and bloodthirstiness. Just then, Maroon learned that Red was secretly leaving the palace and made a friend. His name was Light Yellow. Maroon immediately realized who Light Yellow was—the son of Brown, his longtime enemy. Then the next time Red left the palace, he followed him and killed Light Yellow right before his eyes. Maroon taught this as a lesson: Peaceful people will always die. But when Red turned three hundred years old, he suddenly disappeared from the Kingdom of Darkness. It's not hard to guess what he did. He escaped, and since then, Red has been in the kingdom of the Peacefuls. How he was able to pass through the light dome remains a mystery, but in fact: Red has a light within him that allowed him to enter the Peacefuls' territory.

Each traitor has their own powerful form. Generally, traitors have two: a normal form and a powerful form. In their powerful form, their appearance changes, they grow taller, and they also develop claws. Royal traitors (Revis) are different. They also have two forms, but their transformations are different: they grow taller, have long black claws, their hair becomes longer and darker at the ends, and they gain a black crown, even if they don't wear one. Their horns become longer and sharper, their tail also becomes longer and much sharper, they develop very, very sharp teeth, and if they have wings, their shape changes to a sharper form and they become larger. The royal family of the Peacefuls (Alphys) also have these transformations. Peacefuls don't have a full transformation into a more powerful form, but Brown, Dark Green, and Yellow do. During their transformation, each one gains a sharp halo, and their hair also lengthens, turning light at the ends. The tips of their arms also turn white, and white claws appear. A white crown appears on their head, even if the peaceful one didn't wear one.

Green is Black's brother. He has dark green hair and green eyes. He has a white halo on his head and wings and a tail on the back. He is 200 cm tall. He is cold but kind. Millions of years ago, when Black wreaked havoc, Green was the only one who could stop him from taking over the world.

Brown is the ruler of the Peaceful. He has brown hair and brown eyes. He has a golden halo on his head, and a matching tail and wings behind him. He is 195 cm tall. He is a wise ruler, but has often waged war with the Traitors, steadfastly trying to defend the Peaceful's borders. His main enemy is Maroon. When he learned that Maroon's heir was living peacefully among the Peaceful, he was initially wary, but later came to trust Red more. He saw him as his long-dead son.

Black is the original traitor and Red's original ancestor. He has black hair and black eyes, black horns on his head, and wings and a tail on the back. He is 210 cm tall. He is cruel and bloodthirsty. Millions of years ago, he was the one who created the darkness. He knows what is happening to Red now and is waiting for the moment when Tom turns 1,000 years old, so that the darkness can finally affect his mind.

Pink is Maroon's wife and Red and Orange's mother. She has long pink hair and pink eyes. Black horns protrude from her head, and wings protrude from her back. She is 180 cm tall. She is cold-blooded and cunning. She is also a traitorous vampire, so she can often feast on peaceful flesh. She often thinks about Red and what she could have done sooner to prevent her son's escape. She misses him, though she hides it behind a mask of cunning and composure.

Maroon—He is the current ruler of all traitors. He has maroon hair and eyes, black horns on his head, and a tail at the back. He is 205 cm tall. He is cold, but very bloodthirsty. In his life, he has killed approximately 700,000 innocent civilians, and that number continues to grow. He does not even spare children. He... misses his son. He may not admit it himself, but he misses Red's presence.

Orange is Red's brother. He has orange hair and eyes, dark orange horns on his head, and a tail at the back. He is 180 cm tall. He is cunning and brave, but is not the heir to the throne because he did not inherit the darkness from Maroon. As a child, he envied Red, but now he misses his brother very much. He is Maroon's son and Red's brother.

White is a peaceful man from the Clan of Healers. He has white hair and gray eyes. He has a white halo above his head and wings behind his back. He is 170 cm tall. He is shy and reserved, but very kind.

Blue—A peaceful man from the Mage Clan. He has blue hair and blue eyes, a light blue halo on his head, and a tail at the back. He is 175 cm tall. He often uses foul language and profanity. He is Red and White's best friends, and like White, he knows Red's origins.

Red—he has long red hair and bright red eyes. He has black horns on his head, and a tail and wings behind him. He is 185 cm tall. He has been completely emotionless since childhood. He may feel something inside, but on the outside, he is always cold and calm. He is the only one in his family who doesn't feel bloodthirstiness towards civilians. His name sounds treacherously like Azgar.