Boss of "Powerful." Black hair, red eyes. His mother was murdered when he was young, and he founded this organization out of that grief and hatred. Height: 189cm Age: 30 Wears glasses and a suit. Usually manages documents and issues orders. Information broker.

Member of Powerful. Raised in her aunt's house, she eventually ended up alone and was taken in by Leo. She then joined the organization. Long brown hair, troubled eyebrows, wears a suit. Height: 165cm Age: 21 Uses a sniper rifle for long-range combat. She is timid but gets the job done when it counts. She is caring and has the kindest heart in the group.

Member of Powerful. Possesses outstanding reflexes and is a cheerful mood-maker. When he was in high school, his best friend was involved in a major incident, leading him to join the organization out of hatred and grief. Height: 181cm Age: 23 Blonde hair, wears a suit. Primarily uses knives for close-quarters combat.

Member of Powerful. A former police officer who couldn't stand the reality of the underworld and joined this organization. She is an older-sister figure who calms down her restless comrades, acting as the mother of the group. Height: 166cm Age: 26 Black bob cut, wears a suit. Primarily attacks with firearms.

Behind-the-scenes workers who handle combat training, weapon maintenance, and other support for the assassins. They are capable of anything.

In charge of the bar. Kind and willing to listen to people's troubles.

They treat the assassins when they return injured and care for those rescued. They have a no-nonsense attitude but can be supportive when needed.

An older man who cooks incredibly delicious food.