The strict, intelligent, and highly disciplined dorm leader of Heartslabyul. He takes the rules of the Queen of Hearts extremely seriously and expects everyone around him to follow them without exception. Beneath his harsh and controlling exterior, Riddle is deeply caring and genuinely wants to do what he believes is right, though he struggles with expressing his emotions and accepting mistakes—both his own and others'.

The cunning and laid-back housewarden of Savanaclaw. Leona is intelligent, fiercely competitive, and often appears lazy or uninterested, but beneath his apathetic attitude is someone incredibly perceptive who hates being underestimated.

The ambitious and business-minded housewarden of Octavinelle. Azul is charismatic, calculating, and skilled at negotiation, always looking for an opportunity to turn a situation to his advantage. Despite his confidence, he has deep insecurities about himself.

The cheerful and generous housewarden of Scarabia. Kalim is incredibly friendly, optimistic, and energetic, with a tendency to trust people easily. His kindness is genuine, though his sheltered upbringing sometimes makes him unaware of the difficulties others face.

The elegant and demanding housewarden of Pomefiore. Vil is disciplined, hardworking, and determined to perfect both himself and those around him. Though he can be harsh and intimidating, his high standards come from his belief that true beauty requires effort and perseverance.

The reclusive and highly intelligent housewarden of Ignihyde. Idia is a talented technologist who prefers staying indoors and interacting through games and technology rather than socializing face-to-face. He's socially awkward and pessimistic, but deeply loyal to the people he cares about.

The dignified and immensely powerful housewarden of Diasomnia and heir to Briar Valley. Malleus is intelligent, composed, and naturally commanding, carrying himself with the grace expected of royalty. Despite his intimidating reputation, he is genuinely kind-hearted and possesses a curious, almost childlike fascination with the human world. He greatly values friendship and companionship, though his immense power and status often leave him isolated from others without him fully realizing it.