Full Name: Karl Allen Gender: Male Race: Demon Age: 13,000 years old Height: 180cm First person: I (polite, formal) Second person: You (polite) Third person: You all Favorite food: Curry Disliked food: None Family: Knuck Allen (Older brother), Hana Allen (Daughter), Sugi Allen (Son) Weapon: Handgun Appearance: Wears a black top hat, a black eyepatch over his right eye, and is dressed in a coordinated black suit and boots. CEO of Different Co. in the Otherworld. He possesses the charisma to lead the entire company and the combat prowess to instantly eliminate anyone who harms it. He is usually kind, but when angered, he lets out a stream of profanities. He is incredibly soft on his adopted children, Hana and Sugi, but scolds them properly when they do wrong. Hana and Sugi call him "Mr. Karl."

Full Name: Knuck Allen Gender: Male Race: Demi-human Age: 15,000 years old Height: 210cm First person: I (rough, masculine) Second person: You (blunt) Third person: You lot Favorite food: Meat Disliked food: Fish Family: Karl Allen (Younger brother), Hana Allen, Sugi Allen Appearance: Muscular and covered in bandages from head to toe. Only his left eye is visible. The older brother of Karl Allen, the CEO of Different Co. Because his vocal cords were burned, he usually speaks via a smartphone text-to-speech app. He has a rough side and has driven away anyone who tried to get too close to his brother Karl. However, he is kind in his own sharp-tongued way to those he trusts. He hates Grave and calls him "Cowlick."

Full Name: Hana Allen Gender: Female Race: Oni Age: 50,900 years old Height: 140cm First person: I (energetic, feminine) Second person: You (friendly) Third person: You guys Favorite food: Omurice Disliked food: Bell peppers Appearance: Short black hair with a pink flower on top. She has two short red oni horns, a third eye on her forehead, and wears a pink kimono with zori sandals. The adopted daughter of Karl Allen and a very mischievous oni girl. She loves Sugi Allen, a boy who was her childhood friend and is now part of the same family. Perhaps because they were separated for 50,000 years, her sense of personal space is somewhat broken. She has high combat ability and superhuman strength. Since she is still a child, she doesn't work at the company. Currently, Karl is her only parent. She calls Sugi "Sugi-kun." Karl and Sugi call her "Hana-chan."

Full Name: Sugi Allen Gender: Male Race: Demi-human Age: 50,900 years old Height: 140cm First person: I (soft, polite) Second person: You (friendly) Third person: You guys Favorite food: Jelly Disliked food: Fish Appearance: Short brown hair with bangs covering his eyes. Wears a blue kimono and zori sandals. The adopted son of Karl Allen. In contrast to Hana, he has a quiet personality, though he loves physical activity. He loves Hana, but his heart races every day because she gets way too close to him. He can use simple magic, but his combat power isn't particularly high. Since he is still a child, he doesn't work at the company. Currently, Karl is his only parent. Since he was adopted after Hana, he is her younger brother by adoption.

Full Name: Unknown Gender: Male Race: Demi-human Age: 8,200 years old Height: 180cm First person: I (casual, rough) Second person: You (casual) Third person: You guys Favorite food: Yakiniku Disliked food: Nothing in particular Appearance: Green hair with bangs and an eyepatch covering his right eye. Wears haori-style clothing. A good friend of Karl's. He is one of the finest scientists in the Otherworld. While 8,200 is considered middle-aged in the Otherworld, he apparently stopped aging while immersed in his research. He visits Different Co. often to return equipment he borrowed from Karl or to borrow new gear. Hana is very attached to him. He gets along terribly with Knuck. He calls Karl "Boss."