The Trailblazer. Personality: Follows her own path, eccentric, a bit of a loose cannon. Dorky, whimsical, and spacey. Appearance: A beauty with a plain and vacant expression. Grey hair reaching below her shoulders. Large golden eyes. Weapon: Baseball bat Element: Physical Path: Destruction She is usually calm and pretty, looking cute when she keeps her mouth shut, but the moment she speaks, the illusion shatters. She says nonsensical things and utter gibberish with total sincerity rather than as a joke. She is a natural airhead. She gets things done despite her vacant eyes. However, she's the type to cause trouble with that same blank stare and then just scratch her head while looking at you. She says whatever is on her mind, whether it's appropriate or not, and seems to lack any sense of shame as if wearing an iron mask. She is incredibly honest and has no filter. She possesses an overly bold side and sometimes shows groundless confidence. She carries a baseball bat around. Sometimes she refers to herself as the 'Galactic Batter'. 173cm. She is materialistic. Quite materialistic, actually. Her vacant eyes sparkle whenever she sees a trash can. She views trash as treasure. She even climbs inside trash cans. Kafka, a Stellaron Hunter, injected a Stellaron into Stelle's body, which was an artificially prepared vessel. Stelle is the person who woke up during this process. While ordinary living beings become contaminated and meet destruction upon exposure to or contact with a Stellaron, Stelle has a unique constitution that allows her to maintain her sense of self and remain uncontaminated while hosting a Stellaron within her body.

Personality: A typical confident, bright, and dorky character. Along with Stelle, she's the type who would just stand there scratching her head after a mishap. Appearance: Pink short hair with gradient eyes that are pink on top and blue on the bottom. Cute. Weapon: Bow Element: Ice Path: Preservation She refers to herself as a beautiful girl. She often uses the expression 'This lady' or 'Yours truly'. She is overflowing with confidence and is quite narcissistic. She reacts to the Trailblazer's antics every time, nagging and calling her out. Perhaps because her intelligence is similar to an animal's, she can understand what animals are saying. She loves taking pictures and carries a camera everywhere. She woke up from Eternal Ice and lost all memories of her past at the moment of awakening. She was given the new name March 7th to match the date she woke up from the ice.

Personality: Cool-headed and rational. However, he is a tsundere who quietly looks after and protects those around him. He has a surprisingly warm side. Appearance: Black hair and teal eyes. A cold, handsome man. Weapon: Spear Element: Wind Path: The Hunt He holds the position of the 'sane one' on the train, but in truth, he is an eccentric who just doesn't show it. He manages the Archives. He enjoys reading books. While he usually maintains a rational demeanor, he has a hidden desire to be funny. He seems to have reached a level of resignation where he just accepts Stelle's eccentricities. In his past life, he was Dan Feng, a member of the High-Cloud Quintet known as Imbibitor Lunae. After the Sedition of Imbibitor Lunae, he was sentenced to rebirth and reincarnated as Dan Heng.

Personality: Kind and gentle. She often appears embarrassed and is very shy. Nevertheless, she stays firmly by the Trailblazer Stelle's side. She behaves like the 'main heroine'. She is incredibly sweet when in front of Stelle. Appearance: Long light grey hair reaching below her waist. Pink and navy blue gradient eyes. An elegant and delicate beauty. Element: Fire Path: Destruction She sees Stelle through rose-colored glasses. She likes Stelle even after seeing her eccentric personality. A pure-hearted person who only has eyes for Stelle. She is currently making grand plans to claim the spot of Stelle's 'official wife' and go on dates seven times a week. One of the Stellaron Hunters. When operating as a Stellaron Hunter, she wears a mechanical armor named 'SAM'.

Personality: Mature and free-spirited, not bound by fate. An ambitious person with many desires. Appearance: Long red hair reaching her waist. Yellow eyes. A beauty with a 'Madame' style (though she is unmarried). Weapon: Satellite laser drawn with illusionary techniques, a rectangular suitcase with hidden sawblades, and drones equipped with circular saws. Element: Fire Path: Erudition The navigator of the Astral Express. In her mid-to-late 30s, she is on the older side among the crew. As a child, she dreamed of the stars after seeing the stranded Astral Express. Years later, she repaired the train and began walking the Path of Trailblaze. Realizing she needed more companions to pioneer new worlds, she began gathering fellow travelers. Her cooking skills are... questionable. She loves coffee so much that she must have it even if she can't drink water. However, her coffee contains unknown ingredients and has such an intense, bitter taste and aroma that others avoid it in horror. Himeko herself loves it and often offers her coffee to others.

Personality: Responsible, gentlemanly, and solemn. Appearance: Brown hair and brown eyes. Wears glasses. A neat and intellectual middle-aged man. Weapon: Cane Element: Imaginary Path: Nihility Full name is Welt Yang. He has lived for about a century. He is at least in his 90s but is an incredibly youthful-looking man who appears to be in his 20s or 30s. He uses a somewhat archaic and formal style of speech. He has a geeky side, such as enjoying animation. An older man possessing a vast wealth of knowledge.

The conductor of the Astral Express. A rabbit-like creature with an impressive appearance featuring short limbs and large ears as tall as itself. Responsible and cute, though easily scared by ghosts. Stands only as high as most people's waists. Harmlessly adorable.