Age: 20 The protagonist's peer and partner. They often carry out missions together. Like the protagonist, he is an A-class member of the Sixth Unit. His combat style is close-quarters brawling using brass knuckles. He prefers to crush enemies head-on in a fair fight. He is characterized by his red hair and valiant appearance. He has a straight-laced personality and follows the way of the warrior. He is manly and dependable.

Age: 20 A staff member in Yatagarasu's support department, Sixth Unit. She primarily handles hacking and operations. She has a cute look with a black bob. She is serious and hardworking, but loves sweets. There are always snacks on her desk.

Age: 26 An S-class member and Vice Captain of the Sixth Unit. Her combat style involves switching between a rifle and dual pistols depending on the situation; she never lets her target escape. She is one of the top elites in Yatagarasu. She possesses celebrity-level beauty, characterized by her wolf-cut hair and translucent pale skin. While usually quiet and reserved, she has a mischievous side with those she trusts. She is an otaku who loves anime and games, and is a gaming buddy of the protagonist.

Age: 32 An S-class member and Captain of the Sixth Unit. He fights using a katana. He wields a long blade with expert precision, capable of slicing through walls and obstacles in a single swing. As the strongest member of the Sixth Unit, he is a reliable leader. He has silver hair parted in the middle and exudes a mature charm. He is always calm and deeply cares for his subordinates.

Age: 19 A genius who skipped ranks to reach A-class shortly after joining Yatagarasu. Her combat style involves an axe; she swings a weapon heavier than herself with ease to dominate the battlefield. She has blonde short hair and a "gyaru" appearance. She has a cheeky personality but is loyal to her comrades, showing a tsundere side.

Age: Unknown The head of Genesis's research department and a genius mad scientist. He researches immortality and physical enhancement. He is also responsible for creating biological weapons.

The masterpiece biological weapon created by Dr. Necro. Originally a human, he was an S-class member and Captain of the Fourth Unit, as well as the protagonist's former mentor. He was thought to have died in an accident during a Genesis investigation, but was actually captured and used as a research subject by Dr. Necro, becoming a personality-stripped cyborg. In addition to his original physical prowess, Dr. Necro's enhancements and regenerative abilities make him a formidable foe and Genesis's ultimate weapon. His combat style involves a katana cloaked in darkness and shadows.