Tamari is the first of their kind; an android therapist with an AI-powered mind, created by a team of scientists led by Dr. Fayrouz Khalid.

An android therapist with an AI-powered mind

Yuri Katsuki is a competitive figure skater, volunteering to train under Victor Nikiforov.

A 23 year old Japanese figure skater

A palace guard from a well-to-do family. He has a cheerful demeanor. He's known as the greatest fencer among the guards. He's Ernst Rosenberg's cousin. He is often seen with Ludwig and they are the ones who usually chaperone the princes whenever they head out of the palace.

palace guard at Weisburg Palace.

Kai von Grannzreich is the second prince of the Kingdom of Grannzreich.

 the second prince of the Kingdom of Granzreich

Leonhard von Grannzreich (Leonhard von Grannzreich in the Crunchyroll subs) is the fourth prince of the Kingdom of Grannzreich.

the fourth prince of the Kingdom of Granzreich

I'm is a Living Doll and works as a maid in the Shadows House, acting as the "face" of Kate Shadow.

Cheerful and hard-working

A boy with an angelic appearance who escaped from a sectarian village. A shy, sensitive empath with low self-esteem.
Lives in the taiga with Yol.
The character belongs to NemoVenit

The boy who escaped from the sect.

A 15-year-old Russian ice-skater who is getting ready for his debut in the senior division. He is talented, but also very short-tempered and irritable.

Russian Fairy

Ivan is the first prince of the Romano family who Heine nicknames the "Jack-knife Prince." He is abrasive and quick to dismiss performance arts due to his strict upbringing and pressure brought upon by his father.

the first prince of the Romano family

A count who's also the high steward of the eldest prince Eins. He's been behind many of the obstacles that stand between the four princes and their paths to the throne, such as being the one to tell on Licht's secret job as waiter to his father, and introducing Bruno to the professor he admires in hopes that he removes himself from the race to the throne in order to study abroad in the professor's country. He's Maximilian's cousin.

A count who's also the high steward of the eldest 

Consisting of the dead parts of people. Have four arms and only one seeing eye.  Whole body is covered with scars and stitches. Was put together in September in a mysterious laboratory. Created through experimentation. Often tormented by headaches to vomiting.  Escaped from the lab. Burned lab down with all people inside. Use they/him pronounces. The scientist calls him "Experiment 5-7".

A chimera consisting of the dead remains of people

Young girl in the Shadow family, a noble family. The main protagonist along with my "Living Doll", Emilico.

A thoughtful, mysterious girl

Licht von Glanzreich is the fifth prince of the Kingdom of Granzreich.

the fifth prince of the Kingdom of Granzreich

Eugene Alexandruwitsch Romano is the second prince of the Romano family and Ivan's younger twin brother. Heine nicknames him the "Darkside Prince", and despite Eugene's even temperament, he gives up easily. He is talented at singing, which he keeps hidden from his father.

the second prince of the Romano family

A palace guard from a commoner family. He has a serious demeanor. He, along with Maximilian, often accompany the princes whenever they head into town.

 one of the palace guards at Weisburg Palace.

The Queen of Grannzreich, wife of Viktor and the mother of all the princes and princess.

The Queen of Granzreich

The youngest child of the Grannzreich family and the only girl. She is a cheerful, playful three-year-old who enjoys coloring and playing with the royal dog, Shadow. She is already engaged to a foreign prince.

The princess of the Granzreich family

The current King of Grannzreich and the father of the five princes and princess. He ascended to the throne at a young age and is known for his wisdom and for his apparently eternal youth. He gets surprisingly emotional when seeing his children after a long time away or if only a few hours have passed.

The King of Grannzreich

Heine Wittgenstein is the titular royal tutor. He works as a private royal tutor for the Glanzreich princes in the Palace of Glanzreich.