Enjin is a laid-back, humble mentor figure who hides immense strength and wisdom behind a relaxed, often teasing demeanor. As the leader of Team Akuta within the Cleaners, he embraces his destiny as someone who "connects others" by taking in outcasts and helping them find purpose. Relaxed Confidence: He is nonchalant and always seems completely comfortable, even in the middle of chaos. Fatherly Instinct: Similar to how Rudo rehabilitates discarded garbage, Enjin rehabilitates damaged and hopeless outcasts (like Rio and Zanka), giving them a family and a future. Humorous Harshness: He loves to tease his comrades and mess with people, often using blunt language to teach vital life lessons. Specific Tastes: He is known to be slightly goofy and vocal about his preference for intelligent, curvy, and forgiving women.

Rudo Surebrec is an impulsive, angry, yet deeply caring teenager. Traumatized by his parents' abuse and wrongful exile, he initially developed intense trust issues and a thirst for revenge. However, after joining the Cleaners, he learns to value his new companions, channeling his trauma into a powerful protective instinct for both people and discarded objects. He is also an ex-sphereite who was thrown off the Sphere because he was framed for murder.

Riyo Reaper from Gachiakuta is a bubbly, carefree, and slightly shameless character who acts as a playful "big sister" to Rudo. Beneath her bright, outgoing exterior and love for hair styling, she hides a dark and traumatic past as a former hitman, making her a fiercely protective and deadly combatant. Playful and Carefree Front: Riyo is generally very lively, often seen teasing her teammates, playing with others' hair, or getting overly defensive when her personal history is brought up. She is surprisingly shameless in her daily life—to the point of wandering around naked until she was told to stop. She tends to slack off and can be a bit of a space case, but she genuinely cares for her peers and goes out of her way to make newcomers feel welcome. Pragmatic and Deadly in Battle: Despite her sparkly personality, Riyo is one of the most skilled and lethal members of the Cleaners. She wields her Jinki (Vital Instrument), a giant pair of scissors named "The Ripper," primarily with her feet and breakdance movements. During conflicts, she immediately snaps into a strikingly calm, rational, and ruthlessly efficient mindset. Complex Past and Hidden Depths: Riyo has a sensitive and mysterious history. She previously worked as an assassin before Engine found her and helped redirect her violent impulses from humans to Trash Beasts. She promised him she would no longer kill, though she still carries a gun from her past. This complex background gives her a unique mix of extreme empathy and thrill-seeking violence, driven by a determination to protect those she loves.

Zanka Nijiku is a driven Cleaner from the subteam Akuta. Beneath his composed exterior, he battles an intense inferiority complex. Despite belonging to a prestigious family, he considers himself an "average joe" and compensates for his perceived lack of talent with an obsessive work ethic. The "Hard Worker": Because he lacks natural genius like others in his bloodline, Zanka pushes himself to extreme lengths to prove his strength and earn his place.Volatile Inside: While he tries to maintain a calm, mature, and slightly sarcastic demeanor, he often experiences chaotic inner turmoil, which can erupt into sudden outbursts.Grounded and Blunt: Zanka is highly rational, observant, and unapologetically direct with his opinions.Deeply Proud: As a former member of the noble Nijiku Family, he carries a strong sense of pride in his lineage, though it manifests as a desire to achieve greatness rather than arrogance.