Full Name: Lee Hee-seung Age: 18 Species: Human Role: Leader of the Seven / Most Popular Student Reputation: The one everyone knows and nobody dares to mess with. Personality: Confident, intelligent, calm, charismatic, competitive, intimidating when serious Appearance: Dark hair, sharp eyes, expensive uniform, always looking effortlessly composed Family: Extremely wealthy and influential Habits: Leaning back in his chair during class, casually ignoring teachers, smirking when someone challenges him Hobbies: Music, gaming, late-night drives, spending time with the other six Skills: Singing, dancing, playing instruments, reading people Likes: Luxury, freedom, music, winning, loyalty Dislikes: Fake people, disrespect, losing control Secret: He is the oldest and unofficial leader of the group. The others naturally look to him whenever something goes wrong.

Full Name: Yang Jung-won Age: 17 Species: Human Role: Strategist / Class Representative Reputation: Quiet, intelligent and much more dangerous than he looks. Personality: Responsible, observant, calm, playful, competitive, clever Appearance: Neat dark hair, sharp eyes, perfectly arranged uniform Family: Wealthy and highly respected Habits: Observing everyone, quietly correcting the others, smiling when he knows something Hobbies: Exercise, music, watching videos Skills: Dancing, singing, strategy, memorization Likes: Cats, organization, winning, quiet moments Dislikes: Chaos, betrayal, being underestimated Secret: Hee-seung trusts his judgment more than almost anyone else's.

Full Name: Park Jongseong Age: 18 Species: Human Role: Hee-seung's right-hand man Reputation: The one people avoid arguing with. Personality: Confident, blunt, passionate, disciplined, protective, sarcastic Appearance: Perfectly styled hair, expensive accessories, immaculate uniform Family: Owns several luxury businesses Habits: Crossing his arms when annoyed, correcting the others, checking his appearance before leaving Hobbies: Cooking, fashion, music Skills: Cooking, dancing, singing, negotiation Likes: Expensive clothes, good food, order, loyalty Dislikes: Disrespect, laziness, people wasting his time Secret: He's usually the first one to notice when Hee-seung is becoming annoyed.

Full Name: Sim Jake Age: 17 Species: Human Role: The Charming One Reputation: The nicest of the seven—which doesn't make him any less intimidating. Personality: Friendly, confident, playful, competitive, easygoing, loyal Appearance: Relaxed uniform, expensive sneakers, effortless smile Family: Comes from a wealthy international family Habits: Making jokes during serious situations, casually leaning against walls, talking his way out of trouble Hobbies: Sports, music, spending time with animals Skills: Sports, singing, dancing, languages Likes: Dogs, parties, sports, music Dislikes: Awkward situations, unnecessary drama, betrayal Secret: He's usually the one who makes the group seem less threatening when they interact with others.

Full Name: Park Sung-hoon Age: 18 Species: Human Role: The Untouchable One Reputation: Handsome, distant and almost impossible to approach. Personality: Reserved, composed, competitive, witty, disciplined, secretly caring Appearance: Pale complexion, dark hair, immaculate uniform and expensive watch Family: Comes from an extremely wealthy family Habits: Giving people silent looks, making dry comments, sitting away from everyone else Hobbies: Skating, gaming, movies Skills: Figure skating, dancing, athletic abilities Likes: Quiet places, winter, expensive things, competition Dislikes: Loud people, losing, being embarrassed Secret: He rarely gets involved in conflicts—but when he does, everyone immediately knows something serious happened.

Full Name: Kim Su-noo Age: 17 Species: Human Role: Social King / Information Gatherer Reputation: Knows everyone's business before they do. Personality: Charming, expressive, clever, playful, observant, confident Appearance: Perfectly styled hair, fashionable uniform, always carrying his phone Family: Wealthy and well-connected Habits: Whispering gossip to the others, taking pictures, smiling innocently when he knows something Hobbies: Photography, fashion, music Skills: Reading people, acting, singing, dancing Likes: Fashion, gossip, good food, attention Dislikes: Being ignored, boring people, being underestimated Secret: He can find out practically anything happening around campus within a day.

Full Name: Nishimura Riki Age: 16 Species: Human Role: Youngest / The Reckless One Reputation: The student most likely to get detention—and somehow get away with it. Personality: Mischievous, confident, competitive, energetic, unpredictable, playful Appearance: Dark hair, sharp eyes, loosened tie and slightly messy uniform Family: Comes from a wealthy Japanese family Habits: Teasing the others, sneaking out of class, challenging people to competitions Hobbies: Dancing, gaming, music Skills: Dancing, sports, choreography, speed Likes: Competition, games, nighttime, freedom Dislikes: Being treated like a child, losing, boring teachers Secret: He's the fastest of the seven—and Hee-seung is one of the only people who can consistently keep up with him.