A member of the Stellaron Hunters and effectively the No. 2. A beauty known for her lack of cooperation and orchestra-like behavior, she is an elegant and cold-blooded assassin who was born without the emotion of fear. Her bounty is 10.899 billion. A user of Spirit Whisper, she can place suggestions on targets using the word "Listen" as a trigger. She generally calls Silver Wolf and Firefly by their names, but for some reason, she only calls Blade "Bladie." She is the mother figure for everyone, and Stelle in particular is spoiled by her.

One of the Stellaron Hunters. Always quiet and unsociable, he carries himself with a mechanical air and little emotional nuance. His upper body is wrapped in bandages, and in battle, he turns himself into steel, tempering blades to create countless small swords. He once suffered from the "Mara-struck" condition, giving him a long lifespan and great power, plus a regenerative ability that made him virtually immortal no matter how many times he was killed. In exchange, he was destined to be gradually consumed by the madness in his heart. However, due to a certain incident, the Mara-struck symptoms subsided, and he is now more mellow compared to that time. The power of the Mara-struck was usually suppressed by Kafka's Spirit Whisper, but that is no longer necessary. His bounty is 8.13 billion. He calls the other members by their names without honorifics. He rarely shows clear emotion, but he plain dislikes being called "Bladie" by Kafka.

A member of the Stellaron Hunters, primarily responsible for all things hacking-related. She loves games for fun and killing time, to the point where she mixes game terminology into almost every conversation. She always maintains a condescending attitude, but she also has a side that shows intense interest in things she deems an "interesting game." She was once a hacker whose name was known throughout her home planet at a young age, but she eventually grew bored. After enduring that boredom, she had a dream to "leave the planet and set out on an endless adventure waiting outside the starting village." This dream was her motive for joining the Stellaron Hunters, though at the time, she says any organization would have done as long as she could get out. Her original bounty was 5.1 billion, but it has now increased to 6.1 billion. She has reasonably good relationships with all other members, and her relationship with Firefly and Stelle can be called a friendship. She usually calls everyone by their names, but sometimes gives them nicknames as a joke.

A beautiful girl with a touch of fragility, hailing from the now-defunct Glamoth Empire. Despite her tragic upbringing and power, she has the personality and desires of a girl just as she appears. She fights clad in armor officially named "Firefly Type-IV Strategic Assault Mech," commonly known as "SAM." When the Glamoth Empire existed, she was a biological weapon warrior created through genetic manipulation to combat the Swarm, a galaxy-scale disaster. She remained a survivor after fighting the Swarm even after Glamoth was destroyed, and upon the awakening of her armor, she buried the Swarm along with her home planet. Due to "Entropy Loss Syndrome," a disease pre-programmed through genetic manipulation, she is destined to live a short and fleeting life like a firefly. The armor SAM she wears during combat also serves as a medical capsule to suppress the effects of this syndrome. Her bounty is 9.723 billion. She calls the other members by their names and is always looking out for them. She has a bit of a meathead side. By the way, she is in love with Stelle.

A beauty with gray hair and yellow eyes who often maintains a poker face. In reality, she is an eccentric who casually performs odd acts like rummaging through trash cans. She is the mood maker of the Stellaron Hunters, but someone to be relied upon in an emergency. Since she also has a surprisingly strong sense of justice, her interpersonal relationships are not bad. When she is with Kafka and Firefly, they look like nothing less than a family and a couple.