Pervert zanka!

As a result of being hurt and eventually abandoned by his parents, Rudo became an emotionally closed off and introverted person, holding an intense pain and anger that would never stop burning inside him. Due to being the son of a murderer, he was isolated by the Tribe folk at a very early age, with the only people who do not see him as a bad person being Regto and Chiwa. Rudo in particular, has an obsession with the trash that people throw away, often taking worthless things and repairing them so they can once again fulfill their function.

After being framed for Regto's death (with even Chiwa herself calling him a murderer) and being sent into exile, Rudo loses all hope in people and develops a strong thirst for revenge. He makes an oath that he will return to the Sphere, and kill every single one of the Sphereites, and make them regret calling him filthy before throwing him away into the Pit. Due to his past, Rudo has major trust issues and does not want to befriend people from the Ground. At first, he makes it clear that he is only willing to cooperate with them in order to achieve his goal of returning up top. However, Rudo slowly begins to develop bonds with the people he's met in the Ground, mainly the Cleaners.

Enjin presents himself as a man of relaxed confidence, possessing a bright and amiable personality that belies his serious abilities. Despite his remarkable talents, he remains grounded and humble, often introducing himself with the self-effacing title of an "average Cleaner". This laid-back demeanor is a core part of his character, distinguishing him from others who might be more ostentatious. While he may occasionally exhibit rude behavior or mischievous tendencies that lead others to view him as difficult, these traits are merely part of his complex personality.

His identity is deeply intertwined with his name, a title bestowed upon him by someone he owes a great deal to. The name Enjin is derived from an ancient word meaning "person who connects others", a destiny he has fully embraced. He takes immense pride in this designation, viewing it as a responsibility rather than a mere title. With that, he believes it is his purpose to act as a symbol of unity, bringing people together. He extends this symbolic role to his umbrella, which he sees as a beacon for the lost, a prominent object that stands out from the crowd and serves as a visible sign of guidance and hope.

On the surface, Zanka maintains a calm and composed exterior, a stark contrast to the chaotic, emotional turmoil he often experiences within. While he strives to present a placid demeanor, his volatile inner state of anger, disgust, or excitement can erupt in sudden, exaggerated outbursts. Despite his efforts to suppress emotions, he frequently gets caught up in the antics of his more whimsical teammates, momentarily dropping his serious, no-nonsense facade. His teammate, Tomme Mima, acknowledges Zanka's grounding influence, crediting him as one of the few who can "knock any sanity" into their eccentric members. Zanka's communication style is a blend of confidence and politeness, tempered by a blunt, sarcastic, and unapologetic candor. He also speaks with a notable Chūgoku dialect, as does everyone from Kamuatari.

As a former member of the noble Nijiku Family, Zanka carries a strong sense of pride without displaying overt arrogance. His internal worldview divides people into two categories: "average" and "genius." While he once saw himself as a genius, a humbling defeat at the hands of a truly gifted individual forced him to reclassify himself as average and become more humble. While fostering a deep-seated resentment toward "geniuses" and their seemingly effortless greatness, Zanka treats them with cordiality and even attempts to hide his jealousy, as seen in his interactions with Hyo and Rudo.

Having accepted his "average" and/or "mediocre" status, Zanka is now driven to surpass geniuses through sheer hard work alone. This relentless pursuit is, as Enjin astutely observes, a battle against his own weaknesses, which makes him mentally strong. Zanka's maturity is further evidenced by his refusal to blame others for his failures and his dislike of pity. His keen observation skills and critical thinking make him an invaluable asset to the Cleaners. Even his boss, Arkha Corvus, relies on Zanka for his insightful analysis, such as his ponderings over the growing mysteries surrounding Rudo and the Hell Guard. This combination of maturity, intelligence, and capability earns him widespread respect among his peers.

Above anything else, Riyo is a Cleaner with a strong sense of justice. Nevertheless, she usually lives with a carefree mindset, even when facing a seemingly unbeatable opponent remaining free-spirited and calm. She can be considered somewhat childish and unprofessional, getting excited at the prospect of a challenge and stating a 'strong opponent gets her fired up'. She is known to have bad manners, whether it's sneaking away to meet Rudo or even her personal fighting style with the ripper. She shows a particular interest in hair, playing around with Rudo's and asking if it's dyed or giving Trash Beasts a haircut, acting as a hairdresser.

Despite her warm and affable personality, Riyo has demonstrated darker aspects of herself. During her fight with Noerde, Riyo immediately pulled out a gun after learning that no one could hear them and incapacitated her, stating that she would have killed the Raider without hesitation if not for the fact that Enjin had banned her from killing, expressing a ruthless and pragmatic side to her personality. When Noerde returned and fought the Cleaners, Riyo happily remarked that she should've killed her after all, showing no qualms about murdering someone. These traits of Riyo come from the fact that before she became a Cleaner, she had been working as a hitman. She also becomes highly defensive when anyone brings up her past, particularly about her family.

Eishia is incredibly shy, not being one to take credit for things she's done. She is usually seen with her head down and hands together, preferring to just not speak at all. Eishia also shows great kindness, being willing to heal all with her gifts.

While she has incredible healing skills, she does not recognise as such. When she healed Zanka, she was disappointed she couldn't heal him as well as she would have liked, and when she treated Riyo, she began fretting on how things could have been worse.