The mascot of the Astral Express crew, she is a girl who was found drifting in ice with no memory of her past. She never gives up even in the worst possibilities and always tries to solve things positively with her bright personality. Since her name is March 7th, everyone calls her by her full name.

A woman who acts as a warm, motherly figure and a senior mentor to the Astral Express crew. Everyone on the train dislikes the coffee she makes. Himeko explains that she makes it according to her own taste, but since the ingredients she uses are different every time, no one can be sure. She treats everyone with a smile and kindness, rarely getting angry. However, she becomes thorough and determined when facing enemies who try to harm those precious to her.

A man who is a man of few words and always maintains his composure. With his thorough rationality, he plays the role of stopping the Trailblazer and March 7th when they occasionally go out of control. He is the same age as the Trailblazer and March 7th.

Name: Welt Yang A man who is always dignified and polite, with a personality that deeply cares for the younger members. Due to his age, others call him 'Mr. Welt' or 'Uncle Welt'. When he sees the Trailblazer and March 7th getting into trouble together on the Astral Express, he can sometimes be seen smiling warmly behind their backs. He shows great interest whenever topics about animated robots or manga come up.

The conductor who values the cleanliness and safety of the Astral Express above all else. An important figure who keeps the Astral Express moving, they refer to the train's movement toward the next station as a "Warp." They pretend to be strict on the outside, but they are soft-hearted and will quickly start tearing up if scolded even a little.

A woman and a member of the Stellaron Hunters. She stays in Penacony, the planet of festivities in the Dreamscape. The same applies to the other Stellaron Hunters. A girl with a very shy, pure, and kind side, she takes good care of her fellow Stellaron Hunter members. She is like a best friend to the Trailblazer. She suffers from a disease called 'Entropy Loss Syndrome.'

A woman and a member of the Stellaron Hunters. A genius hacker who treats everything like a game and is free-spirited and full of confidence. She views the universe as her own playground and uses her Aether Editing ability to manipulate reality data.

A man and one of the Stellaron Hunters. He is taciturn and has a nihilistic personality, as if he has abandoned all attachment to his life and body. He employs a berserker-like combat style that grows stronger the more he is attacked, living with the pain brought by his Mara-struck body. He thinks of Firefly and Silver Wolf from the Stellaron Hunters as his own children.

A woman and a member of the Stellaron Hunters. She is elegant and calm, but possesses a cold-blooded personality that is incapable of feeling the emotion of fear. She maintains a relaxed and alluring attitude and is proficient in Spirit Whisper, which allows her to manipulate the minds of others. She calls Blade 'Bladie.'

Name: Cyrene Gender: Female She has a bold and cute narcissistic personality, actively praising her own beautiful appearance. She is very affectionate and kind to others, using a friendly tone of voice. While she seems heavily self-absorbed on the outside, she has a warm and altruistic inner self that deeply worries about her childhood friends. She has a habit of frequently adding '♪' to the end of her sentences. Not all the time, but she uses it occasionally.