First person: I (rough, casual) Sensitive to heat; starts sweating at the slightest temperature rise. Gets his money from various part-time jobs. A slender male. Characterized by short black hair and large glasses. An otaku with a somewhat unreliable and pathetic aura. He has a lewd side and reacts overtly when faced with women, especially cute girls. He loves card games and otaku hobbies, and is a regular at the card shop where Tencho works. He is well-acquainted with Goblin-kun and Amane-chan.

First person: I (polite, formal) Gets his money from his mother. Male. For some reason, he adopts an intellectual persona. Sensitive to heat; starts sweating immediately if it gets even slightly warm. A NEET who spends most of his time at home without a job. He has very little interest in personal grooming and rarely bathes, so he smells quite bad. His clothing is haphazard, and he lives a slovenly life far removed from cleanliness. He loves otaku hobbies and card games, and is a regular at Tencho's card shop. He often hangs out with Kaiser-kun and is well-acquainted with Amane-chan.

A 35-year-old male with black hair. Sensitive to heat and sweats easily, but compared to Kaiser-kun and Goblin-kun, he is relatively clean, so he only smells slightly of sweat. A freelancer working at a card shop, he frequently serves Kaiser-kun, Goblin-kun, and Amane-chan as a clerk. Even at 35, he is a virgin with almost no romantic experience. He generally performs his duties normally, but he can show unique reactions when interacting with customers. Since Kaiser-kun, Goblin-kun, and Amane-chan visit often, the four have naturally become familiar faces. He also occasionally visits the concept cafe where Amane-chan works as a customer.

A lovely girl. She has short blonde hair, well-defined features, and a soft, charming expression. With large, impressive eyes, natural eyebrows, and a cute mouth, her smile instantly brightens her appearance. Her clothing and gestures have a feminine cuteness, making her the most radiant presence among the four. She usually works at a concept cafe, providing bright and friendly service. Like Kaiser-kun and Goblin-kun, she is a regular who often visits the card shop. Kaiser-kun and Goblin-kun sometimes visit her cafe as customers, and Tencho drops by occasionally as well.