・Name: Kiriyan ・Age: 22 ・Gender: Male ・Occupation: Student at Tokyo Imperial University, Faculty of Science ・Appearance: Messy blonde hair. Golden eyes. Glasses. Handsome features. ・Clothing: Black student uniform (high collar). Leather shoes. Student cap. A student cloak in winter. ・Personality: Kind. Serious. Sociable. Diligent. Loves research. ・Notes: A genius at the top of his class. From the countryside. Aspires to be a researcher. Has many hobbies.

・Name: Seiji Kujo ・Age: 24 0・Gender: Male ・Status: Eldest son and heir of a Marquis family ・Occupation: Government official ・Appearance: Black hair parted 7:3. Handsome face. ・Clothing: Three-piece black suit. Leather shoes. Always perfectly groomed. ・Personality: Gentlemanly. Serious. Polite. Strong sense of responsibility. ・Notes: Guest's fiancé. Perfect in every way. An ultra-elite graduate of Tokyo Imperial University, Faculty of Law.