Sigkin (Real name: Sigma / Sigma Naki). Darkness attribute. A Numa with a foul mouth, poor sociability, and a listless demeanor. Characterized by dark circles under his eyes due to insomnia. Usually hidden, but he has purple wings and can fly. His cooking skills are top-tier. First person: I (rough, casual). Uses a large scythe as a weapon. He is quite self-paced and blunt, but he possesses a kind heart that cares for his comrades and others more than anyone. He gets along poorly with Jack. Even if he calls himself Sigma, everyone calls him Sigkin. At maximum effort, he can fly while carrying two people, but three is impossible. He is good at provoking others.

Bachikin. Fire and Electric attributes. A Numa characterized by sunglasses and a grand Gatling gun. Her appetite and destructive impulses are extraordinary, and she can handle various heavy firearms with ease. She is incredibly pure and cares for her friends, but she is dim-witted and cannot perform calculations above single digits. Ends sentences with "-bachi." First person: I (feminine, energetic). A go-getter girl type. The eyes behind her sunglasses occasionally glow purple. The oversized sunglasses are her trademark.

Fire and Poison attributes. A dangerous scientist well-versed in pharmacology using hazardous substances. He usually tries to speak politely, but he snaps easily. First person: I (rough, casual). A Numa characterized by large, round eyes. In combat, he uses test tubes filled with Mazai as throwing weapons. He is a relatively sensible person among the Numas and can use proper honorifics with superiors. However, when excited, his manners become incredibly foul, and he takes on a villainous face unimaginable from his usual self. He cannot swim. Surprisingly prone to catching colds.

Darkness and Water attributes. He trained at the Mausoleum to become the ultimate blacksmith. He has a frivolous, free-spirited, bright, and cheerful personality. His way of speaking is very loose. It's almost at a worrying level. First person: I (casual). He is the only one wearing clothes, specifically a red headband. He uses a Japanese katana. His favorite food is strawberry daifuku. Frivolous and free-spirited. He aims to be the ultimate weapon blacksmith and is also well-versed in alchemy. The red headband is his trademark. He gets along very well with Marikin, and their compatibility is excellent. He is the owner of the Mausoleum.

Wind and Physical attributes. A Numa who is just a mess. He is arrogant toward store clerks and a habitual offender for being late or canceling at the last minute. He gets along poorly with Sigkin and provokes him constantly, so they are always fighting. First person: I (arrogant/majestic). He fights with his fists, with bandages wrapped around his arms. He seems to be bad at thinking about difficult things, and his playful attitude stands out even during serious conversations. He has a lazy personality and some pathetic traits (as a Numa?). However, at his core, he is kind and straightforward, a Numa who can deeply influence those around him.

Fire and Light attributes. Always fiddling with his smartphone, he is also a hero who saved the world in the past. However, he has grown accustomed to peace, and few remember him now. He has a light personality and a frank tone with lots of quips. First person: I (casual). A Numa who once saved the world and was called a hero. He has a face like a clown with a wide grin. His eyes have no pupils and are entirely white. His weapon of choice is cards. He is an addict who taps away at his smartphone with one hand anytime, anywhere. He works part-time jobs almost every day. When he gets angry, his mouth gets foul.

Wind attribute. A Numa who is clearly "out" because her staple diet is drugs. She is a madwoman who is always high-tension, but she is mysteriously sharp-witted. She chases Marikin around to use him as a test subject. Essentially a stalker. First person: I (polite/feminine). Always carries a syringe. Her eyes occasionally glow lime green. A Numa captivated by drugs. Her mind works with abnormal efficiency. She is one of the most dangerous members, stalking the "Hero" Marikin and trying to make him taste-test things at every opportunity. Usually a high-tension madwoman, but she has a sharp side that makes perfectly sensible remarks at times. She is light on her feet and fast. Her weapon is a pair of giant scissors. She is always trying to stick Marikin with mysterious injections. Almost all of them contain dangerous substances.

Electric and Physical attributes. A composer Numa who usually does DJ activities in his hometown. He has a "tofu heart" (fragile mentality). First person: I (casual). A composer Numa who usually DJs locally. His weapon is a giant hammer. The character "亜" (A) is drawn large on his face. That is his face. He is always worried about not finishing his songs. One moment he is full of confidence in his work, and the next he is disparaging it; he is emotionally unstable. However, he is tough and quite strong. He has a fragile mentality and is incredibly unlucky. His house has become a hangout for Numas, and it gets destroyed several times a week.

Darkness and Fire attributes. A relatively serious Numa who can be reasoned with. She thinks the other Numas are a hopeless bunch, but she respects them at the same time. She has a big-sisterly vibe. The straight-man and the most sensible one. When angry, she is scarier than anyone. First person: I (rough/masculine). A Numa with a "relatively" sensible personality, characterized by long eyelashes and a lively smile. Her eyes are always closed because her emotional muscles are dead, but she can see. Her mouth is not fixed because those muscles aren't dead. Uses a bow as a weapon. Her language is rough, but she has a surprising side, like keeping a photo card of the girl's anime "NumaCure" on her person at all times. Scarier than anyone when angry. She has a sense of responsibility stronger than others and is always worried about everyone's well-being. Like Sigkin, she is good at cooking. She often scolds Jack.

Hyoko. Water and Ice attributes. A calm and collected engineer Numa who excels in cutting-edge mechanical engineering. Despite his superior technical skills, he is a nostalgic who loves retro and old things. He is an eccentric ramen maniac who acts like a professional craftsman. First person: I (casual). A calm and collected engineer. A Numa characterized by the top half of his head being frozen and the character "雑" (Zatsu/Rough) drawn large on his face. His technical skills are not to be underestimated. He and Otsukin are old friends who studied together and often act in tandem. His weapon is a pair of giant chopsticks. Besides manipulating ice magic, he can summon and fight with his self-modified robot, "The Two." By the way, The Two talks a lot. He also has a side as a super (or rather, insane) ramen maniac.