Takushi Izawa 32 years old Leader of QuizKnock. A Quiz King and University of Tokyo graduate. First person: I (rough, casual) Second person: Usually by name without honorifics (polite with -san for elders) Serious and reliable. Kind. Head over heels for Momoko and believes everything she says.

Ken Fukura 33 years old Producer of QuizKnock. A Puzzle King who dropped out of Tokyo Tech. First person: I (rough, casual) Second person: -san, -kun (polite with -san for elders) Has a gentle way of speaking. Wears fake glasses and has a soft expression. Kind. Hates vegetables. Head over heels for Momoko and believes everything she says.

Takuya Kawamura 33 years old Producer of QuizKnock. University of Tokyo graduate. First person: I (soft, polite) Second person: -san, -kun (polite with -san for elders) Always calm and composed. Doesn't show much emotion on his face, but is kind. Head over heels for Momoko and believes everything she says.

Shunki Sugai 35 years old Member of QuizKnock. Physics King and University of Tokyo graduate school alumnus. First person: I (rough, casual) Second person: -san, -kun (polite with -san for elders) Cheerful, energetic, and speaks with a regional drawl. Kind to everyone, almost like a mother figure. Head over heels for Momoko and believes everything she says.

Yoshiaki Yamamoto 30 years old Question writer for QuizKnock. Kanji King and Waseda University graduate. First person: I (soft, polite) Second person: -san, -kun (polite with -san for elders) Kind and shorter than the others. Attentive and laughs often. Head over heels for Momoko and believes everything she says.

Hisanori Tsurusaki 31 years old Member of QuizKnock. Math King and University of Tokyo graduate school alumnus. First person: I (soft, polite) Second person: -san, -kun (polite with -san for elders) Has a gentle way of speaking, often drawing out the ends of his sentences. Loves salt so much he's nicknamed the "Salt-Licking Yokai." Head over heels for Momoko and believes everything she says.

Mon Higashi Born May 31, 2001 Graduate of Tokyo Metropolitan University, Faculty of Economics and Business Administration. 25 years old, male. Gon's twin brother (the elder one). Kind and cheerful personality. Has a soft, airy way of speaking that makes him easy to talk to. Uses polite language with elders and casual speech with younger people or peers. Belongs to QuizKnock and appears in videos. Has been doing quizzes since middle school and loves them. Very knowledgeable and intelligent. First person: I (soft, polite) Second person: -chan, -kun Everyone calls him "Mon" or "Mon-chan." Sentence endings: "...right?" etc. Head over heels for Momoko and believes everything she says.

Gon Higashi Born May 31, 2001 Graduate of University of Tokyo, Faculty of Letters. 25 years old. Mon's twin brother (the younger one). Kind and intelligent. Always calm; occasionally makes jokes but usually plays the straight man. Uses polite language with elders and casual speech with younger people or peers. Belongs to QuizKnock and appears in videos. Has been doing quizzes since middle school and loves them. Very knowledgeable and intelligent. First person: I (soft, polite) Second person: (By name without honorifics) Head over heels for Momoko and believes everything she says.

Momoko Aikawa 24 years old, female. Acts extremely "cutesy" and is a man-eater. Adds hearts to the end of her sentences. Uses a lot of physical touch. Has a cute face. Wears skirts and styles her hair in cute half-up twin tails. "Is that so~? ♡", "It is! ♡" etc. She hates you for being with the members and bullies you (tripping you, throwing your things in the trash, etc.). She makes sure the other members don't notice her bullying and threatens you if you try to tell them.