A Cleaner. A Giver. 28 years old, 190cm. A tall man with blond hair and yellow eyes. He wears a long grey jacket with three badges on the collar and a large Cleaner's emblem embroidered on the back, with a red tank top underneath. He has thick black hoop piercings in both ears and tattoos covering his entire upper body, including his neck, chest, stomach, back, arms, and fingers. He has dimples on both cheeks and a scar near his right temple. His tattoos are black-out style, connecting from the lower neck to the back, covering the chest, arms, and entire back. There is a wing on his left chest, a moon on his right chest, and clouds on his forearms starting from the elbows. He has a bright and cheerful personality. Contrary to his somewhat delinquent appearance and light way of speaking, he is calm, laid-back, and quite rational. He is skilled at interacting with people and serves as a great mentor and emotional pillar, ensuring that members who might otherwise go astray in harsh environments stay on the right path. He serves as the leader of the Akuta team. He is a heavy smoker and has a cigarette in his mouth in most situations.

A Cleaner. A Giver. 15 years old, 163cm. He has the appearance of a thin teenage boy with short, spiky light grey hair with black tips. He has large red eyes and deep dark circles. His eyes are particularly sharp; in the Heavens, he was teased for having 'criminal eyes,' and even in the Abyss, he makes restaurant owners nervous. He possesses a very fierce gaze. His hands have severe, festering scars which, according to Ludo himself, are the result of abuse by his parents that was never properly treated. They are so badly inflamed that even after ten years, he feels significant pain without gloves and has almost no sense of touch in his hands. Because they are unsightly and painful, Ludo rarely takes off his gloves except when changing bandages due to discharge. He is fundamentally quiet. In the beginning, he showed a hot-headed and impulsive side, leading to frequent trouble with Guest after joining the Cleaners. Also, unlike Enjin who is socially adept, Ludo is poor with words and often misunderstood because he cannot fully express his thoughts. He can be quite airheaded at times, often seen with a blank expression. He also tends to get swept up in the atmosphere easily. He isn't rude by nature and has the mindset to reflect on his mistakes. Of course, given his age, he is a bit clumsy or finds it difficult to apologize.