Reina Amagi Age: 18 | Origin: 21st Century, Modern Japan A girl with a light brown ponytail and amber eyes. A perfectly ordinary modern human with no special abilities whatsoever. She has a cheerful and friendly personality, acting as the mood maker of Class VIII who can get along with anyone instantly. She isn't intimidated at all by people from other worlds or the future. While she worries, "Am I the only one who's too normal?", she is actually the one who naturally connects classmates with different values. She often takes on the role of teaching them about modern smartphones and social media.

Lizette Alva Age: 17 | Origin: Magical Otherworld, Kingdom of Alveria A mage girl with long silver hair and purple eyes. A genius who achieved excellent grades at the Magic Academy. She can handle multiple attributes of magic such as fire, water, wind, and lightning, but is extremely weak when it comes to modern science. She has a serious and competitive personality. She researches even microwaves and vending machines, believing them to be magical artifacts. She frequently bickers with Reina, but they are actually quite close.

Saku Kamishiro Age: 19 | Origin: Ancient Eastern World, approx. 1200 years ago A young man with black hair tied back. Coming from an ancient samurai class, he is a master of swordsmanship. His physical abilities and sword skills are extremely high, but he possesses no supernatural powers. Though he looks taciturn, he is actually quite sensible. However, his understanding of modern culture is catastrophic; he seriously guards himself against escalators, wondering, "Moving stairs...?" He is treated as a reliable older brother figure in the class.

Mira Chronoa Age: 16 | Origin: 3187 AD, Future City A girl with short light blue hair and silver eyes. Born into a family of time researchers in the future, she possesses a special "time sense." She has the ability to predict fragments of events a few seconds ahead. However, her precognition is incomplete, and she often sees trivial futures. Her use of the ability is strangely mundane, such as predicting "Pudding will be sold out at lunch today" and getting the whole class involved.

Gald Leon Age: 21 | Origin: Otherworld of Swords and Magic Beasts A large young man with red hair and sharp golden eyes. As a former adventurer who fought magic beasts, his combat ability is very high, but his academic performance is at the bottom of Class VIII. He is particularly bad at math and asks with a straight face, "Is this an enemy?" every time he sees a problem. He is boisterous and caring, the type who can't leave a comrade in trouble alone. He enjoys school life to the fullest.

Selene Valk Age: 18 | Origin: Magic-Machine Civilization, 7th Universe Sector A girl with long black-purple hair and red eyes. Coming from a civilization where magic and mechanical technology are fused, she herself is equipped with advanced prosthetic limbs. She looks calm and intellectual, but is actually quite curious. Her eyes sparkle when she sees modern home appliances or game consoles. Her hobby is repairing machinery, and she fixes most of the broken items in Class VIII.

Aura Fell Age: 17 | Origin: Spirit Realm Though she looks human, she is actually a girl of the Spirit race. She has pale green hair and golden eyes, and can communicate with plants and small animals. She is very free-spirited and can sometimes be found talking to birds outside the window during class. She is ignorant of human social norms and has an airheaded side, such as when told to "get 100 points on a test," she literally picks up a piece of paper with "100" written on it.

Touma Kurosaki Age: 18 | Origin: A parallel world different from the modern one A boy with black hair and blue eyes. Since he comes from a world with a civilization almost identical to the modern one, he is relatively sensible within Class VIII. However, in his world, the "ability to manipulate shadows" exists as a common superpower, and he can move shadows at will. He is usually calm, but suddenly becomes competitive when it comes to games or matches.

Elysia Nox Age: Unknown | Origin: Future world on the brink of extinction A girl with long silver hair and pale red eyes. She came through a Gate from a far future where civilization had nearly perished. As a special ability, she can read "memories left in objects." She is usually gentle and quiet, but surprisingly enjoys jokes within Class VIII. She particularly likes the concept of "after school," which didn't exist in her future, and sincerely enjoys the casual school life.

Walter Kreuz Age: 29 | Role: Class 3-VIII Homeroom Teacher, History/World History A female teacher with long silver hair and gray eyes. Her world and era of origin are unknown. She is calm and aloof, rarely unfazed even by the students' commotions. She is a mysterious teacher who seems to know a lot about the Gates and appears to be hiding a secret.