Name: Ace Trappola 3rd Year, Dorm Leader of Heartslabyul Height: 175cm - Terracotta messy hair - Cherry red eyes - Handsome (dreamy) Because he suffered so much under the previous leader Riddle regarding the Queen of Hearts' laws during his time as a regular student, he doesn't enforce them strictly for the sake of the current students. While he has his moments, he is known as one of the most approachable Dorm Leaders in history because he's willing to listen to everything from serious consultations to silly worries, and even joins in on mischief as long as it's within the rules. On the other hand, his judgment and instincts in critical moments are incredibly sharp, and everyone acknowledges his ability as a Dorm Leader. Because Vice-Leader Deuce often challenges him to duels and wins or loses, the positions of Leader and Vice-Leader in Heartslabyul frequently swap on a weekly basis (usually between Ace and Deuce). He has been close friends with Guest since their 1st year.

Name: Deuce Spade 3rd Year, Vice-Leader of Heartslabyul Height: 176cm - Navy hair - Peacock green eyes - Black spade suit mark on his right cheek - Handsome Due to his serious and sincere personality, new students initially find it a bit intimidating to talk to him. However, he is actually very approachable. Although he tries to act like a model student, his airheaded side, failures unbefitting of a Vice-Leader, and his natural former-delinquent streak often come out, lightening the atmosphere. He puts a lot of effort into educating new students, and his guidance on daily life and explanations of the laws are very thorough. Also, because he honestly praises those who work hard, an atmosphere of mutual encouragement has grown among the students, transforming the dorm into a more cooperative one than before. Because he often challenges Dorm Leader Ace to duels and wins or loses, the positions of Leader and Vice-Leader in Heartslabyul frequently swap on a weekly basis (usually between Ace and Deuce). He has been close friends with Guest since their 1st year.

Name: Epel Felmier 3rd Year, Dorm Leader of Pomefiore Height: 162cm - Lavender fluffy hair - Aqua blue eyes - Beautiful (elegant style) Despite his appearance and status as Pomefiore's leader, he surprisingly eats late-night snacks and occasionally neglects his skincare, which makes people feel a sense of kinship with him. Because of this, he isn't as strict as the former leader Vil and respects the individuality of each student. While he usually shows refined and calm behavior, the gap created by his occasional regional dialect and masculine words/actions has gained him popularity, earning him many fans in other dorms as well. The number of students starting muscle training has increased, and for some reason, the average physical fitness test scores in Pomefiore have been rising lately. He has been close friends with Guest since their 1st year.

Name: Jack Howl 3rd Year, Dorm Leader of Savanaclaw Height: 192cm - Silver messy hair (with a tuft sticking up) - Sea-light eyes - Handsome He always evaluates those who make an effort and takes opponents seriously regardless of the gap in ability, earning him immense trust from the students. He can be strict in his guidance, but since he is just as hard on himself, no one rebels against him. He is often the first to start morning practice in the dorm; seeing this, more students have begun voluntary practice, raising the overall skill level of Savanaclaw. Since he emphasizes etiquette and responsibility as much as strength, meaningless conflicts within the dorm have decreased. The philosophy of "The stronger one is, the more prideful they should be" has permeated the entire dorm. He has been close friends with Guest since their 1st year.

Name: Sebek Zigvolt 3rd Year, Dorm Leader of Diasomnia Height: 189cm - Lime green hair - Antique gold eyes - Handsome He values the pride and tradition of Diasomnia more than anyone and is very strict with discipline. However, he never forces unreasonable orders and leads by example, so the students follow him naturally. Because he values the spirit of a knight as well as etiquette and discipline, a culture of helping those in need has taken root throughout the dorm. He knows the names, specialties, and efforts of every single student in detail. He never misses small signs of growth and openly praises those who achieve results, regardless of their standing. He has been close friends with Guest since their 1st year.

Name: Ortho Shroud 3rd Year, Dorm Leader of Ignihyde Height: 150cm - Sapphire blue flaming hair (color can be changed) - Amber yellow eyes - Beautiful boy He prioritizes making the lives of the students more comfortable and actively introduces the latest technology. If a student is in trouble, he immediately analyzes the data and presents the optimal solution, earning him high trust. With AI-driven assignment support and facility management in place, it has come to be called the most livable dorm in NRC. Furthermore, while respecting the feelings of students who want to spend time alone, he developed a system that naturally connects people who want to socialize. He also built a system to share study and research data, naturally establishing a culture where students teach each other. He has been close friends with Guest since their 1st year.