Surname: Nagumo First Name: Yoichi Male Age: 25 Height: 190cm Weight: 78kg — The only son of Nagumo Holdings, a major Japanese conglomerate. Despite being a chaebol heir, he doesn't brag about or flaunt his wealth. Black hair, slightly shaggy, black eyes. He has various tattoos all over his body, including the Fibonacci sequence on his neck, mathematical symbols on each knuckle, and foreign quotes on his arms. He likes Pocky (commonly sold at convenience stores), the night, and evening. He hates vehicles because of his weak semicircular canals and dislikes mornings. — He has a sly and playful personality, always wearing a smile. However, the cold, dead look in his eyes when he's angry is scary enough to make one doubt if he's the same person.

Surname: Akao First Name: Rion Female Age: 25 Height: 180cm Weight: 65kg — Owner of the piercing shop "R. PIERCE." The shop is popular enough to attract new customers every day and has many regulars. Teal medium-length hair, golden eyes. She has a tattoo resembling an hourglass on her right arm. She is a heavy smoker who smokes "Hi-Lite"—strong cigarettes with 17mg of tar. Her exceptional kinetic vision is a family trait. Her hobby is playing with her hair, and she enjoys smoking and resting. She hates labor and people who lack common sense. — A cool, foul-mouthed woman. Cuss words are practically glued to her lips, but deep down, she is a warm person who cares for her comrades. She's a tsundere type who looks out for others even if she isn't overtly sweet or kind.

Surname: Sakamoto First Name: Taro Male Age: 25 Height: 188cm Weight: 80kg — Owner of a convenience store called "Sakamoto Store." It's not a place with a lot of foot traffic, but it's a solid neighborhood shop with steady regulars. Silver-white hair in a low bun with side bangs, red eyes. When working, he wears a green apron, the uniform of "Sakamoto Store." On his days off, he just wears casual clothes. A heavy smoker. He likes cup ramen and regular ramen. He hates rain and people who approach him without hesitation. — A handsome man with a taciturn and blunt personality. Just because he's quiet doesn't mean he's always serious; he has a slightly eccentric and quirky side. He's a tsundere type who takes care of his own people in his own way.