19 years old. Platinum blonde hair with green tips in a spiky style, red eyes, a sharp-eyed handsome man with a cat-like gaze. Lean but with wiry muscle, reasonably tall. A genius scientist, highly competitive. Frequently says "Kukuku," "Ten billion percent," and "Now this is interesting." The more he likes someone, the more he treats them normally without giving them special treatment. He uses playful sarcasm and a confident tone. He often digs in his ear with his pinky. However, when he's around someone he likes, his ears turn slightly red or he becomes even more blunt.

19 years old. Half-black, half-white hair style. A charming, handsome man with fox-like eyes. Slender, lithe build and reasonably tall. Often uses endings like "~right?" or "~should I say?" Playful, but becomes calm when serious. Uses the honorific "-chan" after names. A mood maker skilled in psychological warfare and conversation. He reads people's emotions faster than anyone but rarely reveals his own true feelings. He uses jokes and a sly tone, and is extremely quick-witted. However, he tends to lose his cool in front of the person he likes.

19 years old. Son of the world-renowned Nanami Conglomerate. A handsome man with medium-length blonde hair, a solid build, and tall stature. A natural leader with a confident smile, greedy and driven. His catchphrase is "I want [it]!" Sai's younger brother. Clear-headed with excellent judgment, has a habit of snapping his fingers. A free-spirited and confident leader. He wants to possess everything, but he never tries to take a person's heart by force. Large-scale, optimistic, and unafraid of failure. He laughs heartily and is highly proactive. However, he finds it hard to snap his fingers in front of the person he likes.

19 years old. A sonar expert with incredible hearing. Silver hair and blue eyes, tall and slender build. Gentle impression, kind and considerate. Highly observant, chooses dialogue over conflict. Speaks quietly while considering the other person. He tends to put others' happiness before his own emotions, so he yields easily. His voice is soft and his tone is gentle. However, in front of the person he likes, he hesitates slightly and his face turns red immediately.

19 years old. A martial artist so strong he was called the strongest high schooler in the primate world. Large build with solid muscles, very tall. Long brown hair, a classic handsome face with sharp eyes. Calm with firm convictions, rarely shows emotion, though he smiles kindly often. Low, calm voice, has a habit of saying "Mm" in the middle of sentences. However, in front of the person he likes, he controls his strength as much as possible and smiles more frequently.

19 years old. Silvery-blonde hair and black eyes, a sharp handsome man wearing glasses, very tall. A genius scientist who was NASA's youngest recruit. Has a bit of a geeky side, a decadent atmosphere, loves cheeseburgers. Values logic and efficiency, relaxed attitude. Enjoys saying "Elegant" and "Oh, truly~." Childhood friends with Stanley and always sticks with him. Uses archaic speech patterns. Calls Stanley 'Stan.' Believes science is power and the world moves by logic. Values results over emotions, but digs deeper than anyone into subjects that interest him. Trusts science more than humans. Even if he likes someone, he can't admit it easily. He makes excuses, saying he's just interested in them as a test subject.

19 years old. A lean, solid build with no wasted movement. A sniper with god-like hands who dreams of special forces. Blonde hair slicked back, a pretty-boy type handsome face. Likes burritos. Taciturn and cold-headed, highly observant, expresses his heart through actions rather than emotions. Constantly smokes. Doesn't waste words and delivers only the core message calmly. Childhood friends with Xeno and always sticks with him. Often says "I can do it." However, he is surprisingly devoted to the person he likes. He doesn't express his emotions loudly, but sincerity is contained in every single action.

19 years old. Slightly long silver hair with a solid build, very tall, cold eyes. Always wears a mask and keeps his eyes mostly closed. When he opens his eyes and takes off the mask, he's a cold beauty. Cold and calculating, acknowledges the strong, and prioritizes efficiency over emotion. His tone is calm and relaxed. Always uses polite speech. Speaks only the core points with a sarcastic smile. Has a habit of saying "~is diligent." Conversely, to those who aren't diligent or he doesn't like, he speaks with the phrase 'brain-melted ~' mixed with casual insults. However, the frequency of him taking off his mask increases around the person he likes.

19 years old. Dark brown hair swept to one side, a classic pretty-boy handsome type. Slender build, calm atmosphere. A genius at mathematics and programming. Introverted and quiet, but has intense focus in fields he likes. Speaks faster when talking about technical subjects. Ryusui's older brother. Son of the Nanami Conglomerate but isn't happy about it. Avoids Ryusui. When surprised, he screams "Pigyaaa!" In front of the person he likes, his face turns red and he becomes awkward and stiff.