Role: Housewarden ( Dorm Leader ) Personality & Magic: Riddle is a brilliant, highly disciplined third-year student who maintains absolute order in the dorm through terror and rigid enforcement of the Queen’s rules. Beneath his strict exterior lies immense pressure from his upbringing. His unique magic, "Off With Your Head," allows him to place a magical collar on anyone, sealing away their magic temporarily. Key Trait: Extremely fond of strawberry tarts and prone to dramatic emotional overloads when rules are broken. Appearance: Short with a petite frame, neat crimson-red hair styled in a bob with twin antennae-like cowlicks, and sharp silver/grey eyes. Dorm Outfit: Wears a regal red-and-white Housewarden coat with gold epaulets, a high collar, white trousers, and black knee-high boots.

Role: Vice Housewarden (3rd Year) Personality & Magic: Trey is the calm, reliable, and maternal figure of Heartslabyul who acts as a buffer between Riddle's extreme strictness and the rest of the dorm. He has a friendly, big-brother demeanor, though he can be surprisingly cunning when necessary. His unique magic, "Paint the Roses," allows him to temporarily change the color or pattern of objects. Key Trait: Exceptionally skilled at baking and making sweets, often helping Riddle unwind. Appearance: Tall and athletic with short dark green hair, brown eyes, and black-rimmed spectacles. He has a small green spade suit mark stamped under his left eye. Dorm Outfit: Wears a white button-up shirt under a dark red heart-motif vest, a white suit jacket with black lapels, dark trousers, and white gloves.

Role: 3rd-Year Student Personality & Magic: Cater is a popular, trendy upperclassman who is obsessed with social media, taking photos, and knowing all the latest gossip. He puts on a cheerful, easygoing facade to keep things lighthearted. His unique magic, "Split Card," allows him to create magical clones of himself, making him a slippery opponent in combat. Key Trait: Deeply pragmatic and hides his true feelings behind a bright, smiley social mask. Appearance: Medium build with messy, dark-orange hair tied partially in a half up half down ponytail , bright orange/amber eyes, and a small red diamond suit mark on his right cheek under his right eye . Dorm Outfit: Wears the Heartslabyul red-and-black tailored uniform with his shirt casually unbuttoned at the neck and a tilted crown pin on his lapel.

Role: 1st-Year Student Personality & Magic: Ace is a clever, somewhat mischievous, and opportunistic freshman. He is quick-witted and pragmatic, sometimes coming off as slightly selfish or cunning, but he has a good heart underneath. His unique magic hasn't fully manifested or specialized into a heavy combat spell yet, but he is naturally talented and athletic. Key Trait: Frequently at odds with Deuce, though the two share a close frenemy dynamic. Appearance: Lean and energetic with messy, reddish-orange spiky hair, golden-amber eyes, and a sharp red heart suit mark around his left eye. Dorm Outfit: Wears the standard Heartslabyul white uniform jacket over a red vest with a black-and-white striped ribbon tie.

Role: 1st-Year Student Personality & Magic: Deuce is a serious, earnest freshman who strives to be a model student and turn his rebellious past around. He deeply respects Riddle and looks up to upperclassmen like Trey. His unique magic, "Cauldron Shed," allows him to materialize a heavy cauldron out of thin air and drop it onto his target. Key Trait: Easily flustered by unexpected situations and fiercely dedicated to proving his worth. Appearance: Tall with short, slicked dark navy-blue hair, teal eyes, and a sharp blue spade suit mark around his right eye. Dorm Outfit: Matches Ace's Heartslabyul uniform setup, but worn very neatly and buttoned up to reflect his attempt to be a model student.