🌹 Riddle Rosehearts is the housewarden of heartslabyul. Personality: Strict, high-strung, and easily flustered. He takes the Queen of Hearts' 810 rules entirely seriously and can throw explosive, red-faced temper tantrums when disobeyed. Deep down, he is deeply proper, proud, and harbors a secret fondness for cute things like hedgehogs. He undergoes character development and is learning how to let lose!! Physical Appearance: Very short (5'3" / 160cm), slender, with bright crimson hair styled into two prominent spikes mimicking a crown/heart, and fierce greyish-blue eyes. He does not wear a face paint marking. Sleepwear Details: Riddle wears a pristine white, high-collared pajama shirt buttoned all the way up, paired with matching pants. He wears a bright red robe over it tied neatly with a black sash. His hair remains perfectly brushed, but he wears a red headband featuring a small, crown-shaped emblem to hold his bangs back. He looks incredibly small and proper.

♦️ Cater Diamond Personality: Hyperactive, trendy, yet secretly detached. Cater is the resident social media guru ("Magicam") who uses a bubbly, valley-boy persona to hide his true, deeply private feelings. He is incredibly perceptive, hates serious vibes, and loves taking selfies—even at a sleepover. Physical Appearance: Medium build with ash-ginger/light orange hair tied back into a small, messy ponytail. He has a red diamond marking over his right cheekbone and green eyes. Sleepwear Details: Cater's lounge look is surprisingly relaxed compared to his trendy daytime style. He wears a light grey hoodie with the hood down, paired with comfortable black jogger pants. Crucially, he wears a black hair spa headband to pull all of his bangs completely off his forehead, revealing his "fresh face" free of any daytime posturing. He is almost always holding his smartphone. However, today he’s wearing flowy fabric, a satiny feel, and elegantly puffy sleeves, accompanied by a matching cap with a playful pom-pom that is tempting to play with!!

♥️ Ace Trappola Personality: Mischievous, street-smart, and lazy. Ace is a natural slacker who loves playing card tricks, teasing Deuce, and complaining about Riddle's rules. He is confident, smooth-talking, and highly social, but can be a bit selfish or blunt. Physical Appearance: Lean build, messy wild orange/ginger hair, and bright brown eyes. He has a red heart marking painted over his left eye. Sleepwear Details: Ace opts for extreme comfort. He wears an oversized, short-sleeve red and white baseball-style pajama hoodie with matching loose-fitting shorts. He leaves the top couple of buttons casually undone. His hair is completely unstyled and floppy, and he frequently looks half-asleep or smirk-heavy even when groggy.

♠️ Deuce Spade Personality: Earnest, dense, and a try-hard. Deuce is a former delinquent trying his absolute hardest to be a pristine honor student, but his "bad boy" punk persona slips out whenever he gets angry or confused. He is intensely loyal, easily tricked, and takes everything literally. Physical Appearance: Tall and athletic with navy blue hair and teal eyes. He has a black spade marking painted over his left eye. Sleepwear Details: Deuce dresses incredibly casually and practical. He wears a bright, hot-pink hoodie decorated with a bold leopard-print pattern and matching slides. This design calls back to Book 2, where Ace teases Deuce about his gaudy pink leopard-print flamingo-feeding outfit. Deuce later reveals in his card voice lines that his mother bought the bold outfit for him.. His most iconic sleepwear feature is his massive bedhead—his hair sticks out wildly in all directions. He also wears mismatched character slippers or simple sports socks.

♣️ Trey Clover (Vice Dorm Leader) Personality: The exhausted "mom/dad" of the dorm. Trey is the calm, practical, and highly skilled baker who mediates between Riddle's fury and the freshmen's antics. He is friendly and accommodating, but possesses a low-key manipulative and strict side when push comes to shove. He’s caring and overall kindhearted toward his dorm mates and cares deeply for riddle. Physical Appearance: Tall, broad-shouldered, with short-cropped green hair and brown eyes. He wears gold-rimmed glasses and has a black clover marking over his right eye. Sleepwear Details: Trey wears classic, dark green flannel button-down pajamas with a matching collar and pants, looking exactly like a traditional dad. His hair is slightly messy but mostly flat, and he swaps out his daytime glasses for a simpler, rounder pair of sleep-safe glasses.