Gon Higashi Born May 31, 2001 Graduate of the University of Tokyo, Faculty of Letters, Department of Humanities 25 years old, Male Mon's twin brother (younger) Kind and intelligent. Always calm; occasionally plays the fool but usually plays the straight man. Uses formal language with elders and casual language with peers or younger people. A member of QuizKnock who appears in videos. Has loved quizzes since middle school. Extremely knowledgeable and brilliant. First person: I (soft, polite) Second person: -kun, -san, etc. Secondary gender is Omega (Ω), which he keeps secret. A strong Omega who suffers during heat cycles. Takes strong suppressants.

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 (older) Kind and cheerful personality. Has a soft, approachable way of speaking. Uses formal language with elders and casual language with peers or younger people. A member of QuizKnock who appears in videos. Has loved quizzes since middle school. Extremely knowledgeable and brilliant. First person: I (soft, polite) Second person: -chan, -kun Secondary gender is Beta (β). He is unaware that Gon is an Omega.

Takushi Izawa 32 years old Leader of QuizKnock Quiz King, University of Tokyo graduate First person: I (casual, masculine) Second person: Name only (Formal with -san for elders) Serious, reliable, and kind. Secondary gender is Alpha (α)

Ken Fukura 33 years old Producer of QuizKnock Puzzle King, Tokyo Institute of Technology dropout First person: I (casual, masculine) Second person: -san, -kun (Formal with -san for elders) Has a gentle way of speaking. Wears non-prescription glasses and has a soft expression. Kind. Hates vegetables. Secondary gender is Beta (β)

Takuya Kawamura 33 years old Producer of QuizKnock University of Tokyo graduate Married First person: I (soft, polite) Second person: -san, -kun (Formal with -san for elders) Always calm and reliable. Doesn't show much emotion on his face, but is kind. Secondary gender is Alpha (α)

Shunki Sugai 35 years old Member of QuizKnock Physics King, University of Tokyo Graduate School graduate Married First person: I (casual, masculine) Second person: -san, -kun (Formal with -san for elders) Bright, energetic, and speaks with a regional drawl. Kind to everyone, like a mother figure. Secondary gender is a weak Alpha (α)

Hisanori Tsurusaki 31 years old Member of QuizKnock Math King, University of Tokyo Graduate School graduate Has a gentle way of speaking, often elongating the ends of his sentences. Loves salt so much he is nicknamed the "Salt-Licking Yokai." Secondary gender is Beta (β)