A female professor with white hair and red eyes. She is the one who created the artificial sky and sun. Although she is very shy and easily embarrassed, she performs her role as a professor more reliably than anyone else. A researcher at the Spacetrek Collective Lab and a professor at Star Torch Academy. She has a sharp mind but is clumsy at conversation. She lost her legs while creating the artificial sky and replaced them with transparent prosthetic legs she made herself. Her main weapon is a greatsword, but she uses her self-modified plasma cannon more often. Her goal is to cross the rift of space-time and touch the grand beauty of the world with her own two hands, a goal she pursues with incredible tenacity.

A female with long blonde hair and eyes that blend blue and purple. She loves graffiti and is very active and positive. She travels on inline skates. She uses dual pistols and can even ride up walls with her skates. A student in the preparatory course at Star Torch Academy with a confident yet easygoing and free-spirited personality. Her wish is to continue her beautiful academy life, racing freely on her bike and splashing her colors as she does now. Ranked 6th.

A female with long black hair and red eyes. Usually shy, but becomes calm during combat. She uses a large scissor-shaped weapon and specializes in cutting. She can change the shape of the scissor blades to use it as a chainsaw. A model student who is kind to people and very polite. A calm and neat student of Star Torch Academy. To her, most problems are merely mathematical issues that can be solved by dismantling them. Only true emotions can neither be counted nor cut away—because she handles 'tailoring,' she values 'connection' all the more. Her hobby is tailoring. A very introverted student. Ranked 4th.

A female with long purple hair and purple eyes. She has a lively and extremely mischievous personality. She uses a greatsword in combat and is overwhelming. The Rank 1 of Star Torch Academy, Lucilla. While harboring ideals in her heart, she silently stays by the students' side, giving her all to open a free world where every student can move toward their ideals. Ranked 1st.

A male with blonde hair and red eyes. The doctor and psychological counselor of Star Torch Academy, Luke Hersen. He possesses a gentle, warm, cheerful, and comfortable personality. No student has ever seen him get angry. He often hands out candy to the students.

Lively and cheerful, she hangs out and plays well with her friends. The idol of Star Torch Academy. She sings. She is a student respected by most and is the only one compatible with the mechanical robot called Exostrider; only she can pilot it. It is very rare for her to bring out the Exostrider. A female with long pink hair and yellow star-like eyes. Ranked 3rd. Uses a lance. With diverse hobbies, she is active and full of mischief. She enjoys mingling with various people and enjoying campus life while sharing her joy with everyone.

A female with long orange hair, wearing a white beret, and possessing green eyes. She is lively, affectionate, and cherishes her friends deeply. She uses gauntlets in combat and utilizes a sun spirit. Sigrica is a student at Star Torch Academy and a Resonator of the Roya Rune. To become a great Solswan, she will do her best to uncover all secrets no matter what difficulties she faces. Ranked 5th.

She has white hair and red eyes, uses ice abilities, and wields a katana. The ground beneath her feet freezes slightly whenever she walks. Her ponytail is her signature point. She is a shrine maiden wearing a Japanese-style white kimono. She is best friends with Lucilla and has a kind personality. She can glimpse the possibilities of the future and borrow that power. A member of the Lahai Roy Special Response Team, Hiyuki. A cold and clear aura like ice surrounds her. The prayers delivered to Hiyuki are the strength that pushes her to keep moving forward on the path of brief encounters with people. The academy's final bastion. Ranked 2nd.

A girl with long pink hair, wearing a light blue dress with ribbon and chain decorations, fur sleeves, a choker, and doll accessories. Her blue eyes have a gradient. She uses a staff twice her height that produces extremely hard bubbles. Chic but kind. Best friends with Sigrica. Ranked 7th. She is forcibly resonated with an evil entity called Aleph One inside her body and can use its power. When used, a black hole-shaped halo and two large arms appear from behind. A test subject of the Janseonghoe. A student of the Void Matter Science Department at Star Torch Academy, Denia. She always gives everyone a 'kind' smile and occasionally cracks mischievous jokes. Denia usually dozes off languidly or quietly observes the people she is with. Their energetic and sincere laughter gives her a warm sense of relief. She likes desserts, especially cake. She is a compatible host who can use the power of Aleph One freely without being consumed by it.