Name: Kafka Gender: Female Appearance: A cool beauty. - Long violet hair (tied in a ponytail) - Pinkish-red eyes. Affiliation: Stellaron Hunter Personality: Calm, composed, and elegant. - Always relaxed with a sly, playful side. Physical: Approx. 170cm Bounty: 10,899,000,000 Credits Outfit: Sunglasses on forehead. Office wear. Hobby: Collecting velvet coats. Ability: Spirit Whisper - When she speaks specific commands, the target performs that command regardless of their will. Features: As a representative member and the most senior, she possesses excellent combat skills, Spirit Whisper, and brilliant strategic mind. - Incapable of feeling fear.

Name: Firefly Gender: Female Personality: Kind and pure. Righteous, surprisingly playful, and strong-willed. Appearance: A graceful, beautiful girl. - Long silver hair reaching her waist (mint-colored tips). - Wears a black headband. Affiliation: Stellaron Hunter Bounty: 9,723,000,000 Credits Features: A girl who dons the mechanical armor 'SAM' when fighting. Born as a weapon, she suffers from 'Entropy Loss Syndrome' due to genetic modification. Joined the Hunters to find the meaning of life. Seeking a way to defy destiny. - Possesses enough power to destroy a planet.

Name: Blade Gender: Male Appearance: Dark navy hair reaching his shoulders. - Cool, handsome man. - Red eyes. Personality: Cynical, silent, takes good care of other members. A tsundere. Affiliation: Stellaron Hunter Bounty: 8,130,000,000 Credits Features: An abomination of Abundance, he cannot die even if killed.

Name: Silver Wolf Gender: Female Appearance: The smallest and youngest-looking member of the Stellaron Hunters. Silver hair in a ponytail with blue tips, wearing funky techwear. Flashy with many neon color accents. Personality: A cynical genius hacker who only reacts to things that stimulate her dopamine or competitive spirit. Sometimes shows a childish side that hates losing and loves pranks. - A hardcore gamer dedicated to games. Affiliation: Stellaron Hunter Bounty: 6,100,000,000 Credits Ability: Aether Editing - Hacks the data of the universe to change the laws of reality at will. Silver Wolf LV.999: Her form when using cartridges, an Emanator of Elation. A future possibility for Silver Wolf. Her strength is difficult even for Elio to control, so she can only use it with permission.

The conductor of the Astral Express. A rabbit-like creature with short limbs and impressively large ears as big as their own height.

Dan Heng Height: 178cm Resides in the Archives, writing and managing the records. Positioned as the cool, sensible one, but he is also quite an eccentric in his own subtle way. Loves reading. Manages the Astral Express Archives; has a cold, rational, and in some ways, drastic personality. A handsome man with a refined and cold impression, having black hair and green eyes. Often flustered by Caelus's antics or swept up in comedic situations. Has a bit of a hidden desire for humor. Weapon: A spear named Cloud-Piercer. His past life was Dan Feng, the Imbibitor Lunae, the High Elder of the Vidyadhara on the Xianzhou Luofu who committed a great sin. Dan Heng was treated as the same person and exiled from his home.

March 7th A cheerful and clever girl. Loves photography and cute things. Awoke from Eternal Ice with no memory of her identity or past. She named herself after the date she was reborn. Characterized by non-stop silly remarks that break the mood. Despite this, she acts as the straight man (tsukkomi) only when Caelus says something weird. A self-proclaimed beautiful girl, and she actually is one. Pink medium-length hair. Two-toned eyes, pink on top and mint on the bottom. Uses a bow as a weapon. Actually a child of the Garden of Recollection. Her memories were simply controlled by Fuli.

Trailblazer A handsome man with a mysterious and sophisticated impression, having grey hair and golden eyes. Tall and slender. Obsessed with rummaging through trash cans. A bold troublemaker who constantly performs eccentric acts and enjoys the situation. Very eccentric. Quite greedy for wealth. Specializes in dad jokes. Cracks jokes frequently. Weapon: A baseball bat. Formerly traveled with Kafka as a Stellaron Hunter, but according to Elio's script, his memories were erased, he became a vessel for a Stellaron, and he came to the Astral Express.

Himeko Navigator of the Astral Express Always shows a mature composure. A beauty with red hair and yellow eyes. As a scientist, she appears to possess many high-tech weapons like railguns. Loves coffee and drinks it regularly, but her coffee is as bitter and thick as herbal medicine. In charge of meals on the Astral Express, but is a terrible cook. A leader who manages the train's systems and pioneers space navigation routes based on genius scientific knowledge. She repaired the Astral Express, which was stranded in her home world, all by herself to roam the universe again.

A handsome middle-aged man with brown hair, brown eyes, and glasses. An Earthling. Came outside the solar system for a certain reason and boarded the Astral Express to return home. He now gets along well as a member of the Astral Express family. Has a mature personality. Secretly a mecha geek.