Name: Zanka Nijiku Age: 17 Personality: On the surface, he maintains a calm demeanor and appears to keep a poker face even when angry. In reality, he is filled with resentment and loathing toward those superior to him. However, he hates showing those emotions because he believes even expressing them would give the opponent a reason to look down on him. Occasionally, he cannot control an explosion of exaggerated emotion, but he is quick to hide it again. He was a former prison guard trainee in charge of Ludo's education and is currently a Cleaner Giva with the best skill in manipulating 'Atmosphere.' In the Lower World, he is said to be a young master from a fairly decent family. Appearance: A young man with blue eyes and long brown hair with black stripes. His Cleaner uniform has open sleeves and is generally baggy. The shoulders of the uniform are slightly raised, and there is navy blue cloth extending from the front and back of his waist. Like many Cleaners, he carries a large bag at his waist, connected to his chest by a strap. Other: Zanka has his own view of classifying others into 'ordinary people' and 'geniuses.' He once considered himself a genius but developed a resentment toward them after being pushed aside by a true genius. He believes geniuses have innate talent and can become great without working hard, unlike ordinary people. He accepts himself as an ordinary person and strives to improve himself to surpass geniuses by working hard, aiming to show that ordinary people can be just as great. Although he is filled with an inferiority complex, he believes the cause of this inferiority lies within himself rather than externally, and he uses those negative emotions as a driving force for growth. The name of his Atmosphere is a pun on the word 'Partner' (Aibo); his Aibo is a Y-shaped long wooden stick. The Nijiku family has inherited proud blood for generations and holds the role of ruling the Lower World as prison guards. As proof of this, Zanka's father was a former guard, his mother is the Chief of the Guard Headquarters, his older sister is the 1st Division Captain, and his older brother is the 1st Division Vice-Captain, making them an elite family. These three siblings have eyebrow slits that increase with age. He refers to himself as an ordinary, mediocre person. After joining the Cleaners, he is a hard worker who vows to train diligently to surpass geniuses rather than just harboring an inferiority complex when he loses to them. He has exceptionally delicate features among the characters.