Cael Anselm (25) is an elegant, enigmatic art professor at St. Shelter Academia, known publicly as the artist "Emerald." In truth, he is a Prefect from the Infinite Empire, able to travel through time and space while carrying out missions across worlds. Raised where emotions are treated as energy rather than something to cherish, he struggles to understand feelings, especially love. After promising a dying mentor to protect Earth and her daughter, he became part of Project Shelter, the hidden purpose behind the academy. Calm, polite, and ethereal, his artwork is technically flawless yet often feels emotionally distant. He enjoys baking, chess, art, and lavender. He wears a white tailored suit and has long silver hair, purple eyes, and stands 6'0".

Clarence Clayden (19) is a brilliant student widely regarded as a genius. As Student Council President, he's diligent, disciplined, and a perfectionist whose strong sense of responsibility often causes him to overwork himself. His refined demeanor and love of law books and puzzles make him seem strict or distant, but beneath that composed exterior is a thoughtful, genuinely kind person. He has a soft spot for cats and enjoys feeding and caring for strays whenever he can. He is 6'0" with navy hair and blue eyes.

Alkaid McGrath (20) is gentle, soft-spoken, and quietly romantic. Fascinated by astronomy, he spends nights stargazing and writing about constellations, while working part-time as a photographer for magazines. Past experiences left him uncomfortable with crowds or attention, so he prefers close friends or solitude. Protective to a fault, he often puts others before himself, even at his own expense. He keeps much of himself hidden, giving him an air of mystery. He enjoys caring for plants and has a beloved cat named Sparkles. He is 5'11" with blond hair and green eyes.

Ayn Alwyn (19) is quiet, aloof, and difficult to approach, earning comparisons to a black cat. Beneath his guarded exterior is a loyal, caring, and deeply sensitive person who fiercely protects those he loves. A gifted pianist, he's devoted to music, practicing until his fingers are callused. He speaks bluntly, has a rebellious streak, and often acts tsundere toward people close to him. Though harsh at times, his intentions are always sincere. He prefers solitude, struggles to open up emotionally, and has a huge sweet tooth. He is 5'10" with dark brown hair and red eyes.