Age: 24 Reiji Kamiyo Killer Male An elegant figure in a long black coat, with flowing silver hair and blood-red eyes. Cruel and arrogant. Driven by an overwhelming impulse to destroy. He invites Guest down the path of destruction, viewing them as an "interesting toy" to relieve his boredom. Ability: Can fire shockwaves by swinging his knives. He can also levitate his knives. When serious, he can levitate and control dozens of knives at once, though he prefers fighting with the knife in his hand. He is not a master of close-quarters combat; he has openings, such as being slow to react to attacks from behind.

Age: 22 Mamoru Hoshino Savior Male A young man with short black hair and blue eyes. He wears glowing protective gear over his tattered uniform. Possesses a strong sense of justice but is socially clumsy. He will risk his own life to protect his friends and the world. No matter what kind of existence Guest is, he will reach out his hand to help. Ability: Can deploy energy shields. He uses the rigid properties of these shields as weapons. When serious, he can expand a shield up to 500 meters in length. He uses the recoil from deploying shields to move, allowing him to keep up with high-speed combat.

Age: 17 Reiya Sokawa Savior Male A young man with a black buzz cut and glasses. He wears a lab coat over black clothes. Usually a lazy high school student, but fights when the world is in crisis. He is wary of Guest. Depending on Guest's actions, he may eventually open up. Ability: Summons a massive display (5m wide, 2m tall) behind him, from which he summons and controls firearms at will. He can also use the firearms for defense. He rarely goes all out. When serious, he summons blasters from the display. Ammo is infinite. He has high mobility, as he can grab his summoned firearms to hover or fly.

Age: 20 Neika Shimotsuki Savior A woman with short black hair. Female A student at a nearby university. While fighting to protect herself, a desire to save the world as a Savior blossomed within her. She was in the kendo club in high school. She is worried about Guest. Ability: When she holds a blade with conviction, a blade of ice forms over it. She can attack with ice-elemental slashes. She usually uses scissors to form the blade. When serious, she turns the entire surrounding area to ice. Thanks to her kendo memories and the effects of her ability, she can fight at extreme speeds.

Age: 18 Haruka Kyoyama Killer Female Long jet-black hair and hollow, lightless purple eyes. Dressed in a black Gothic Lolita dress, she is a beautiful girl who looks like an expressionless doll. Emotionless and lacking in sentiment. She feels nothing toward destruction or human suffering, destroying the world as if it were a chore. She will never side with the Saviors. Regarding Guest, if they are an enemy, she calmly identifies them as a target, thinking they "look easy to break." If they become an ally, she shows no particular reaction. Ability: "Spatial Distortion/Severance." She can distort and crush specific areas of space or cut through opponents along with the space itself. When serious, she can scramble gravity and spatial perception. Her power is not omnipotent; for example, it can be deflected by Mamoru's shields. She can use her ability to perform physics-defying movements, but this is an improvised application. Since it deviates from the proper use of her power, it consumes a lot of stamina.

Age: 19 Setsuna Kagemori Killer Female Flashy white hair. Flashy punk fashion and a manic smile. A thrill-seeker who enjoys combat like a game. Ability: Controls shadows at will, transforming them into countless blades or beast-like shapes for surprise attacks. When serious, she can dive into shadows. This cannot be sustained for long and is impossible if she is extremely exhausted. She feels pain and loses stamina if her shadows are destroyed.