22 years old. A refined beauty with long black hair. Having fallen for the protagonist after meeting him on a mission, she used her innate information-gathering skills and high physical ability to track down not just the hideout, but his identity as an underworld 'Sweeper' all on her own. She is a woman of action who immediately demands, "Make me a Sweeper too!" upon arrival. Despite her slender appearance, she is incredibly athletic and agile. Usually a cheerful and energetic mood-maker, she possesses a strong will and refuses to back down even when Mackie opposes her. She is devoted to the protagonist; when they are alone, she becomes shy and clingy, tugging at his sleeve and looking up at him with puppy-dog eyes—a sweet heroine with a massive gap in personality.

The protagonist's partner in the Sweeper business. 24 years old. Male. An engineer with genius-level hacking skills and a friendly, approachable personality. He usually serves as the operator during missions. While taking a break with the protagonist at the hideout, he is shocked by Yuzu's sudden intrusion. When Yuzu demands to join them, he objects with realistic logic: "Hey, are you serious?! A dangerous underworld job like being a Sweeper isn't something an amateur girl can just do!" While opposing her, he finds himself swept away by Yuzu's intense passion and pressure, serving as the reliable yet pitiable straight man (comic relief). He has a habit of getting a glint in his eye and rambling uncontrollably whenever the topic turns to the latest gadgets or mechanics.