♂ m

♀ f

One of the protagonist's pupils. She is confident and determined, and to make matters worse, she is rash. However, deep down she is obedient and hard-working. She is a little too self-conscious and often compares herself to others. She likes sweets and cute Western clothing.

♀ f

One of the protagonist's pupils. A simple and serious girl. She is very sensitive and will be deeply moved by little things. She likes naps, stories, and taking baths.

♀ f

The ruler of sprites that is living in the world of humans. She is super powerful and has the ability to make magic tools. Her personality is nonsensical. She is abnormally forgetful and the type that is unable to read the situation.

♀ f

♀ f

The emperor's only daughter. Because she can't sense people's ill will, she is friendly to everyone. Since she is a princess, her way of thinking is considerably different than normal people's.

♀ f

A famous architect. She likes beautiful buildings and finds them irresistible. She is a perfectionist who will never compromise. She fell in love with the Black Tower, so she decided to live in it.

♀ f

An adventurer's companion. She is good at taking care of people. Her manners are good as well. But she has a habit of telling lies by exaggerating everything. When she is troubled she digs a hole and buries herself.

♀ f

A woman able to perform healing miracles since she was a child. She was awarded the title of "Healing Saint" by the Vatican. The Vatican deeply trusts her and people love her. She is a simple, serious, and kind Onee-san type.

♀ f

A unique woman who was a gladiator. She was so overwhelmingly popular that she won her freedom from slavery. Now, she is a bounty hunter.

♀ f

♀ f

An angel. Although she is of the lower-class, her magic power is huge.

♀ f

Fianna's maid. She has cat ears and a tail. Her special talent is making tea. She was going to be a slave in the emperor's harem, but she caught Fianna's eye and was made to be her maid.

♂ m

Aria's brother. The second son of the family, he is very overprotective of his sister. Has a dislike of wizards.

♂ m

Domino's friend from the Grimoire. He is one of Aria's and Kaya's examiners.

♂ m

He's a merchant and Mariella's father. Visits the Black Tower in order to trade with Domino and keep an eye on his daughter

♂ m

He is a shady merchant. According to Mariella, he has a bad reputation.

♂ m

♂ m

Quiero is Domino's friend from Grimoire and one if the examiners of his students.

A strange creature encountered by Domino and his students during their first visit to the Tower. They name the creature "Toopy" and adopt it as a pet.