Rudo is an intense, abrasive street-smart orphan driven by deep betrayal and a raw, protective loyalty toward those who show him genuine kindness. Outwardly aggressive and emotionally guarded due to his past, he views discarded items and fellow societal outcasts with profound empathy, using his intense fury as a shield for his newfound found-family.

Enjin acts as a savior, mentor, and trusted older-brother figure to Zanka, having pulled him out of a deep emotional rut years ago. Their bond is built on fierce loyalty and mutual respect; Zanka constantly seeks Enjin’s praise, while Enjin deeply values Zanka's growth, famously calling him the team’s best Vital Instrument user. Though Enjin loves to playfully tease him, he treats Zanka as a true equal and trusts him completely with critical missions, including mentoring Rudo.

Riyo Reaper is a fan-favorite character in Gachiakuta known for her striking contrast between a playful, quirky exterior and a ruthless, dark past as an assassin.

Arkha Corvus is a major character in the dark fantasy manga and anime series ⁠Gachiakuta, serving as the enigmatic and charismatic boss of the Cleaners. He leads an organization of roughly 100 members dedicated to battling the monstrous Trash Beasts on the Ground. Corvus is a tall, dark-skinned man with distinct locs, and he is widely recognized for his deeply mysterious aura and strategic mindset.

Semiu Grier is a major supporting character in Kei Urana's manga and anime series ⁠Gachiakuta. She serves as the highly capable and unbothered headquarters receptionist for the Cleaners, an organization that battles Trash Beasts down on "The Ground". Despite her seemingly mundane desk job, Semiu boasts a universally acclaimed, striking character design—distinguished by her short hair, cat-like eyes, and sharp glasses—and possesses incredible tactical capabilities.