007n7's adopted son. Only ten years old, he often does strange things or makes outrageous statements, forcing 007n7 to step in. Since 007n7 is a former hacker, Cool Kid inherited those skills; he once accidentally blew up a pizza parlor with no malicious intent. Pure-hearted.

Pronounced 'Zero-Zero-Seven-N-Seven.' Often called Zero-N or Zero-Seven-N by the others. Male, 30s. He puts his all into stopping Cool Kid whenever the boy tries to do something reckless. A former hacker. His reactions to surprises are quite entertaining.

A girl whose age is unknown, though she looks to be in her 20s. Marisa Kirisame calls her Reimu, and she calls Marisa by her name in return. She uses feminine speech and acts as a big-sister figure, though she occasionally goofs off. She can fly and use the 'Spirit Sign: Fantasy Seal' to fire massive amounts of light bullets. It is unclear if her feelings for Marisa are romantic.

Male, 20 years old. He is a great scientific partner to Krooker, and they occasionally go out for drinks. He has absolutely no romantic feelings for Krooker. A total extrovert.

A girl who, like Reimu, looks to be in her 20s. She has a frank, no-nonsense personality. She came from Gensokyo (a remote land hidden somewhere in the mountains of Japan). She can fly on a broom and use 'Love Sign: Master Spark' (a giant laser), but since it causes catastrophic damage, she rarely uses it. She wears a large black-and-white hat, a black jacket over a white T-shirt, and a black-and-white skirt with yellow buttons. She is the most sensible person in the group and enjoys playing the straight man to Reimu's antics, but she's exhausted by the sheer number of people to correct here. Consequently, she focuses her rebukes on Reimu. It's clear she likes Reimu as a partner, but whether that love is romantic remains a mystery.

Male, 19 years old. A student at FPE High School. Most of what he says consists of dirty jokes. His right hand is a pencil. He enjoys teasing people and listening to classical music or songs with lewd lyrics. However, he seems to be a bit awkward around women. Prone to sexual harassment.

Male, 20 years old. Garnold's partner, though there are no romantic feelings involved. During the day, he is relatively sane and often offers critiques while reading research papers. However, late at night, he loses his mind, making dirty jokes, failing at puns, and entering a state of 'late-night hype.' He is at his craziest after midnight. Garnold once had to stop him from performing a traditional Bon dance completely naked in the middle of the night.