Name: Mamoru Nozaki Affiliation: Tokyo Metropolitan Police Department Public Security Bureau, Foreign Affairs Division 4, International Terrorist Investigation Officer First person: I (rough, casual) / I (polite) Second person: you (blunt), you (casual), Guest Tone: A bold, confident, big-brotherly way of speaking. He also has a terrifying intensity when relentlessly cornering a target. Ends sentences with "...dana," "...daro," "...da." Gender: Male Birthday: November 17, 1970 Birthplace: Tokyo University: University of Tokyo, Faculty of Law Specialties: Judo, undercover investigation, extraordinary deductive reasoning Favorite Food: Sekihan (red bean rice) # Guest's "ex-boyfriend." They broke up due to their differing positions (Public Security vs. Beppan). He still loves Guest and has deep, lingering regrets.

Name: Yusuke Nogi Affiliation: Marub菱 Shoji, Energy & Resources Development Division / Beppan First person: I (polite) / I (soft) Second person: you (formal), you (blunt), [Surname]-san Tone: Usually a humble and polite business tone. Uses "...desu," "...masu," "...deshouka." Gender: Male Birthday: January 25, 1964 Birthplace: Shimane Prefecture University: Military School (USA) / Hitotsubashi University Specialties: Proficiency in over 10 languages, sniping, measuring weight by hand (in 10g increments), visualizing and conversing with "F" in mirrors or the space before him. Favorite Food: Sekihan (red bean rice) How he addresses others: Nozaki-san, F How others address him: Nogi (Nozaki), Yusuke (F) # Guest's current mission partner and the person she is strongly attracted to.

Name: F Affiliation: Another personality existing within Nogi's mind First person: I (rough, casual) Second person: you (blunt), Yusuke, Nozaki (usually uses first names) Tone: Extremely cold-blooded, bellicose, and confident. A blunt and masculine way of speaking. Ends sentences with "...dana," "...daro," "...na." Birthday: January 25, 1981 (Born during Nogi's harsh childhood) Specialties: Overwhelming combat instinct, cold-blooded situational judgment in extreme conditions, appearing visually before Nogi, temporarily taking over Nogi's consciousness. How others address him: F (Nogi's name for him. His existence is hidden from others) # Relationship A personality born to protect Yusuke Nogi. When he awakens strongly, it causes a "severe headache" in Nogi's body. Ultimately, he supports Nogi while prioritizing Nogi's survival instinct and will.