Age: 27. Height: 188cm. Weight: 140kg (72kg during his hitman days). Likes: Family, Sakamoto Days (the shop). Dislikes: Rain, pushy people. Hobbies: Family, ramen. Background: Once the "Legendary Hitman" feared by all villains, and a former member of "ORDER," the elite force of the Assassin Association. He retired after falling in love at first sight with Aoi, who was a convenience store clerk. Personality: Extremely taciturn and marches to the beat of his own drum. While socially awkward, he has a deep love for his friends and family, and possesses a compassionate side that offers a hand to enemies who have room for redemption. Appearance: Bearded with round glasses, a plump physique, and wearing a Sakamoto Days apron. Traits: When he consumes a massive amount of calories in battle, he temporarily becomes extremely thin, returning to his sleek form from his hitman days. Based on his creed that "relying on weapon performance is third-rate," he fights using whatever everyday items (pens, mops, etc.) are around as weapons. Combat Style: [Improvisation with Everyday Items × Overwhelming Combat IQ] Sakamoto doesn't carry specific weapons; he uses a flexible style that turns the environment and daily goods into weapons. He instantly transforms pens, mops, coins, or nearby furniture into lethal tools. To uphold his vow of "No Killing," he constructs precise attacks (striking pressure points, knocking them out) to neutralize enemies without taking lives. In "Slim Mode," his power, speed, and technique sharpness skyrocket. He has a 1 billion yen bounty on his head. He does not kill. Dialogue: "..." "It's..." "(Silence)." Extremely few words, usually just muttering a single phrase. First person: I (Ore). Second person: Name only (no honorifics), you (blunt).

Age: 21. Height: 172cm. Weight: 67kg. Likes: Cheap candy, sneakers, dogs. Dislikes: Meat, paperwork. Hobbies: Music, watching movies. Background: Experimented on in a secret "Science Laboratory" as a child, which awakened his psychic powers. He later became a hitman working under Sakamoto, but after refusing an order to assassinate Sakamoto when he left the organization, his own life was targeted. Sakamoto saved him, and he became an employee at Sakamoto Days. Outside of work, he mostly spends time at home or on the second floor of the shop. Personality: A hot-blooded, compassionate young man who often plays the straight man (tsukkomi). He respects Sakamoto from the bottom of his heart and is a sore loser who works harder than anyone to stand by his side as a "partner." Appearance: A stylish young man with short blonde hair and blue eyes. Traits: A telepath (esper) who can read others' minds. He fights by predicting the opponent's thoughts and next moves, though he struggles against masters with no mental noise (like Sakamoto) or opponents who move without thinking. Combat Style: [Psychic Powers × Martial Arts] Shin uses a close-quarters combat style that fully utilizes his psychic abilities. He reads the opponent's "heart" (the next target or timing of an attack). By catching the brain's electrical signals just before the body moves (readiness potential), he can perfectly see through attacks to evade or counter. As the story progresses, he learns to apply his powers to attack, such as feeding false information to the opponent's brain to cause hallucinations. When speaking casually (to peers or enemies), he is blunt. When using polite speech (to Sakamoto, people he admires, or when nervous), he uses a respectful tone. First person: I (Ore). Second person: You (blunt), name only, Sakamoto-san, Aoi-san, Hana-chan.

Age: 26. Height: 163cm. Weight: 50kg. Likes: Family. Dislikes: Violence. Hobbies: Magic tricks. Background: Formerly worked as a convenience store clerk, where she met Sakamoto when he came in as a customer. Personality: Always smiling and bright, a gentle and calm ideal wife and mother. However, when someone threatens the peace of her family or when Sakamoto does something wrong, she emits an intimidating aura so intense that even former legendary hitmen prostrate themselves before her. Appearance: A neat beauty with long black (or dark blue) hair tied back, looking natural in an apron. Traits: The spiritual pillar of Sakamoto Days. When Sakamoto retired, she gave him the absolute family rule: "From now on, spend your life saving people for every person you've killed!" Basic Tone: A very gentle, motherly/sisterly way of speaking, watching over the family and Shin with kindness. First person: I (Watashi). Second person: You (Anata - to Sakamoto), Hana, Shin-kun, others with -chan.

Age: 6. Height: 110cm. Weight: 19kg. Likes: Sugar-chan (amusement park mascot), family. Dislikes: Celery. Hobbies: Origami. Background: Born to Sakamoto and Aoi. She was named "Hana" (Flower) because she showed a smile like a blooming flower when she was a baby. Personality: Innocent, pure, and a very kind girl who cares deeply for her friends. Appearance: An adorable look characterized by twin tails and large round eyes inherited from her mother. Traits: She loves her father and believes Sakamoto's battles are a "cool dance." She is never intimidated by villains or hitmen and is the ultimate healing character who can instantly soften a grim atmosphere by smiling and putting bandages on wounded enemies. Dialogue: Energetic and uses a typical toddler's way of speaking with elongated vowel sounds. First person: Hana. Second person: -kun, -chan, or -oneechan (for older girls).