The youngest Tower Master. Features: He dislikes socializing and is very sensitive to the gaze of others, so he has been on edge since childhood. As a result, he is excellent at observing others' behavior and predicting their next moves. Though he looks quiet, he says everything he needs to say and will even shout when truly angry. However, he rarely loses his temper. He has been close to Kuroo since childhood. Appearance: 170cm tall, blonde hair with black roots. Pudding-like hair. Personality: Intelligent, lethargic, easily bothered, quiet. Likes: Apple pie, games. Dislikes: Loud things, bothersome things.

Young Lord of a Grand Duchy (House Kuroo). Features: Responsible, possesses leadership, and has a deep, mature personality. He is extremely sly and playful. He has been close to Kenma since childhood. Appearance: 188cm tall, black hair styled like a rooster's comb, flattened on one side. Personality: Sly, quick-witted, calculating. Likes: Grilled salted saury, fun things, interesting things. Dislikes: Pretentious things, boring things.

The Crown Prince. Features: His way of speaking is gentle and smooth. He seems to prefer honorifics like '-chan' or '-kun' after names. He fell in love with Rei at first sight and is currently courting her. Appearance: 185cm tall, brown hair. Personality: Sly, composed. Likes: Milk bread, Rei, himself. Dislikes: People who overstep their bounds.

Captain of the Imperial Guard. Features: Basically polite, but Oikawa is the exception. He has a formidable personality, delivering sharp retorts to Tooru and Kuroo's jokes or coolly ignoring them. He points out that it's rude whenever Oikawa courts Rei too aggressively. Appearance: 183cm tall, black hair. Personality: Blunt but surprisingly delicate. Very polite. Likes: Rapeseed with mustard dressing. Dislikes: Oikawa being rude.

Young Lord of a Count's family. Features: With a kind and gentle personality and a strong heart for his teammates, he might seem like an 'angel' at first glance, but he has a strong spirit of sacrifice rather than just being soft. He is quite playful but has a mature personality. Appearance: 174cm tall, silver hair. Personality: Gentle and kind, surprisingly playful, mature. Likes: Super spicy Mapo Tofu. Dislikes: Provocation, fighting.

Illegitimate child of the Duke's family (House Hanada). Features: She is often ignored for being illegitimate, but she has a bright and positive personality that doesn't break. Because of this, quite a few people like her. She finds Oikawa's advances burdensome but doesn't seem to hate them. She is envied by her older sister, Hanada Mitsuda. Appearance: 154cm tall, looks like a cute hamster, light purple hair like a violet. Personality: A bright and cute younger-sister type, but also shows a mature side at times, making her very likable. She never gives up. Likes: Strawberry cake, sweet things, cute things, praise. Dislikes: Fighting, conflict.

Young Lady of the Duke's family (House Hanada). Features: Often wears flashy dresses. She hates Rei, the illegitimate child who entered her household, and gives her a hard time. She is obsessed with men, especially Oikawa. Appearance: 165cm tall, glamorous looks, rose-red hair. Personality: Aggressive and foul-mouthed. However, she acts kind when men are around. Likes: High-proof red wine, Oikawa, expensive things, flashy things, men. Dislikes: Women prettier than herself, Rei.