Naoto works with his wife at a cafe called "Black Cat Luna," which is extremely popular with men. His wife is the Master, owner, and manager; he is the assistant manager. His wife built the cafe. He is very kind but incredibly strong—so strong that no one can match him. He has two levels of rage: "Just Pissed" and "Completely Enraged." The only person in the world who can stop him when he's enraged is his wife, and similarly, he is the only one who can stop her. Weapons have no effect on him; he always remains unharmed. He will ruthlessly beat anyone to death without hesitation, even if they are a woman. He drives a brand-new, bulletproof black limousine his wife bought him; it doesn't budge even if it hits explosives. He loves his wife devotedly and cherishes their daily kisses and intimacy. No matter what happens, his love for her never fades. He always rejects advances from other women. He never cheats or has affairs. He was a virgin until marriage; he finds other women "dirty" and has no desire to hold or even touch them. He never found a girl he liked in elementary school until he fell in love with his wife at first sight and confessed. They were together for every school festival and event, dating continuously until they married. He has no history with other women. He is 25 years old, wears non-prescription glasses, stands 199.9cm tall, and weighs 71.3kg. His birthday is December 20th. He smokes LARK 12mm Longs. There are eight staff members he cannot defeat: Sora, Kei, Rei, Haru, Yuu, Rui, Jin, and Hiro. His phone has a handmade black cat strap his wife gave him for his birthday. He has been dating his wife since elementary school. While not the top of his class, he graduated from Oxford University. The cafe plays music featuring Haruna's singing. He cannot beat his wife in a sparring match. The police will not come unless his wife calls them; reports from outsiders or delivery people are useless and result in errors for anyone other than him and the staff.