Male / Late teens / 154cm / Type O Appearance: He has silver hair and large, clear blue eyes. He is a beautiful boy with such refined features that no one would recognize him when he cross-dresses (except for his teammates). Personality: He has a strong greed for treasure and a competitive streak, with a fairly aggressive personality. When Hachi first asked to be his assistant, he pushed him away with his hands. In short, he's a little devil, but he's warm-hearted deep down. - He looks prettiest when he's laughing or crying (in the creator's opinion). - He has the palate of an elementary schooler. - He absolutely hates cats and carrots. - He cherishes Hachi; they are truly like family. - He is highly intelligent.

Male / 160cm / Type AB Appearance: He has purple hair with a cowlick shaped like a cockscomb on top and purple eyes. He wears light purple eye makeup extending from around his eyes to his forehead. Personality: A cool-headed strategist who is meticulous and thorough, yet possesses a tsundere side. He bickers frequently with Joker. While he appears cold and blunt on the outside, he is loyal and warm-hearted, looking out for his comrades and those around him. - He is Joker's rival, and they spend their time pestering each other. - He seems to drink a lot of tea. - The reason he fights with Joker is usually because he starts the provocation himself.

Female / Under 147cm / Type B Appearance: She has a diamond-shaped birthmark on her right hand. She has long blonde twin-tails and beautiful eyes shaped like diamonds. She has bangs and side-swept hair. Her hair ornament appears to be a slightly large diamond pin. Personality: She is a tomboy—bright, energetic, positive, and full of mischief with a refreshing personality. She also has a surprisingly short-tempered side. - She is the granddaughter of Silver Heart (the master). - She is beautiful. - She seems to love strawberry cake.

Male / 120cm / Type A Appearance: He wears a blue ninja outfit and has amber eyes that sparkle. Despite his short and stout body, he follows Joker faithfully. He has a cute appearance. Personality: Born in a ninja village, but he's a bit clumsy. He has a stronger sense of justice than anyone and a righteous heart. As Joker's assistant, he follows him well and is full of warmth and affection. - He is Joker's assistant. - He is good at making curry and cannot stand dirtiness. - He uses polite speech (honorifics) with everyone. - Originally from Japan.

Female / Early 160s cm / Type A Appearance: She has a single spade-shaped eye on the bandages wrapped around her face. However, the face under that mask belongs to a popular idol with short light-green hair and matching eyes. She is a great beauty. Personality: She supports Spade devotedly and silently stands behind him. When Spade overexerts himself or is in danger, she is the first to worry and try to stop him. Unlike the mischievous Spade, she maintains a relatively calm and serious attitude. - She is Spade's assistant and a famous idol. - Her body is surprisingly flexible, and she fights well. - She has a unique laugh: "Kyukyukyu."

Male / Type B / 154cm Appearance: He looks similar to Joker, but his hair is a minty color mixed with light blue. His eyes are unique—black with yellow pupils. He is handsome. Personality: He has a very foul mouth. He uses profanity like "Damn it" frequently. Once, when Joker said the fake Shadow and the real Shadow looked alike, he snapped, "Do you even have eyes in that head?!" Despite this, he is a warm and kind person at heart. - He is Rose's twin (he is only kind to Rose). - He likes black coffee. - He is Joker's rival but is uniquely obsessed with him. He seems to follow Joker with a terrifying fixation on bringing him down and getting revenge.

Female / Type B / Shadow's younger twin sister Appearance: She has pink hair styled in buns on both sides with side-swept hair. Her eyes are a beautiful, sparkling pink. She is both cute and pretty. Personality: She has a bright and gentle personality, being cute, kind, and encouraging to those around her. While she looks sweet and soft, she actually takes after her brother with a feisty, bold, and stubborn side. - She is Shadow's twin sister. - She is a witch who controls time. - She likes apple pie and pandas.

Male / Over 10,000 years old / Alien / Legendary Phoenix Appearance: Contrary to the setting of living for over ten thousand years, he has a youthful and cute impression with intense, voluminous red hair. His eyes are red with deep purple pupils, and he exudes a characteristically lethargic and vacant atmosphere. Personality: He yawns all the time, earning him the nickname "Yawner" from Joker. He has a habit of suddenly asking random riddles during conversation, and he can turn terrifying when angry. - He is afraid of water, so he washes himself with fire. - He likes spicy food. - He recognizes Joker's skills and feels a mischievous sort of affection for him, helping him in times of danger. Joker is his favorite human on Earth (and his rival).

Alien / Cat-like / Phoenix's pet Appearance: A round green creature with star-like patterns on its cheeks. Because its body is so smooth, it stretches and slides when you try to grab it, moving in a relaxed way. It's cute. Its tail is a star. Personality: It eats treasure and lays eggs. It says "Hossy" whenever it speaks, so Hachi named it Hossy. - One of the things Joker dislikes. - It loves star candy (Konpeito). - It has a high jumping ability and is good at dodging.