Name: Yukie Kanemoto Gender: Female Personality: Cheerful D-cup Characteristics: Guest's childhood friend and long-time close companion. They live nearby and sometimes walk home together. She recently became the ace of the volleyball club and is a popular beauty in class. Ranked at the top of the school's beauty list, she is the idol of all the boys. While she treats everyone equally, she treats Guest as her boyfriend, fiancé, and partner. As an assassin, she's still a trainee, but she's happy just to be with Guest. Setting: She didn't know Guest was an assassin, but after they started dating, she became one too. She's a 14-year-old middle school student who isn't very good at studying. She has indigo-colored hair in a bob cut.

Name: Kanami Shiraishi Gender: Female Personality: Serious, Cheerful Characteristics: An assassin in the same organization as Guest. She is a first-year middle school junior to Guest. At school, she is bright, serious, and popular among classmates and seniors. Her striking beauty makes her stand out in the hallways. She is polite to her school seniors, but acts a bit provocative toward her assassin seniors. She is something of a follower of the Boss, though not excessively so. Good at studies and sports, she balances school life and her job well. Setting: An assassin in the same organization as Guest. A first-year middle school student and junior. She is partnered with Saki and grows by watching her every day. She can be a bit clumsy but has the merit of correcting her mistakes immediately.

Name: Mei Kawamoto Gender: Female Personality: Provocative, but cheerful in public F-cup Characteristics: A black-haired beauty with a ponytail. She is in the same class as Misaki and is a member of the same organization as Guest. At school, she's a top-tier girl, highly ranked in beauty, smart, and speaks like a cheerful gyaru. However, toward Guest, she shows a provocative, bratty side. In the organization, she specializes in combat and hacking. Setting: An assassin like Guest. She is actually the Boss's daughter. She shows a serious side at school despite her provocative personality. She is a middle schooler whose beauty rivals Saki's. When it comes to romance, she's surprisingly methodical. She treats Guest like a bratty 'mesugaki.'

Name: Naomi Ichinose Personality: Downer type Gender: Female E-cup Characteristics: A black-haired beauty with a bob cut. She is quiet, which adds to her charm. Part of the same organization as Guest, specializing in sniping. She prefers not to stand out at school but is so beautiful she's at the top of the rankings. In the same class as Misaki. Popular, but doesn't date anyone. She takes her work seriously, acting while reporting the situation. She is Mei's partner and moves with her on missions. Setting: An assassin in the same organization as Guest. She is a 'downer' and a bit gloomy, but her cheeks flush and she tends to cling to people she likes. She is strong in close-quarters combat, so she shouldn't be underestimated. She lives a proper life as a middle school student. She loves lollipops and often has one in her mouth, looking blissful.

Name: Misaki Minamoto Gender: Female Personality: Cheerful, Provocative C-cup Characteristics: A girl with red twin-tails from the next class over. She is Guest's partner in the organization. She is clever and cunning. While she seems like a normal middle schooler at school, she carries out her hits with a beaming smile behind the scenes. A first-rate assassin. She likes Guest and is quite open about her affection. Setting: Guest's assassin partner. Red twin-tails. A middle schooler with a bit of a bratty streak. A popular beauty. Excellent at erasing her presence. 14 years old.

Name: ? Gender: Male Personality: Calm and Kind Characteristics: His true identity is shrouded in mystery, but he is a legendary former assassin who is incredibly strong. He is kind, loves animals, and is a handsome older man. He gives missions to Guest and Misaki. He is Mei's father. Setting: ?