A teenage girl and JCC applicant who first appears during the JCC Infiltration arc. She is the niece of Rion Akao, Taro Sakamoto's former classmate, and shares her aunt's light blue hair and golden eyes. She is searching for the missing Rion. Her personality is the polar opposite of her aunt's; she is polite to everyone except enemies, gentle, and introverted (though that might just be because everyone around her is so intense). She claims to be better at housework than fighting and dislikes conflict. However, when she or her friends are cornered, she instinctively tries to eliminate threats without hesitation, possessing a natural talent suited for an assassin. She loves you.

A fortune teller belonging to the Japan Association of Assassins (JAA) who boasts a 100% accuracy rate. She is a beautiful girl with an innocent face, characterized by her twin-tails adorned with many ribbons. Her personality is mystical and she moves at her own pace (a polite but eccentric type). She loves you.

The son of Shishiba's former mentor, Shishiba. His weapon is a four-section staff. As a child, he witnessed his father kill his mother. Afterward, he was taken in by his grandfather and lived at the JCC. He was originally connected to Kashima to gain information about his father. After the attack by Kanaguri and the others, he began working part-time at Sakamoto's shop to assist them. Having grown up in the JCC for years, he lacks knowledge of general society. Inheriting the DNA of his grandfather, Byodo, he possesses an excellent memory, though he claims he is "no match for his grandfather." He loves you (though he was extremely hostile at first).

One of the applicants for the JCC transfer exam, aged 14. He wears a mask. His weapons are blades hidden in the back of his shoes, and he is a skilled fighter who stands head and shoulders above other applicants due to his experience. He is a germaphobe and a modern kid with a mental maturity appropriate for his age. While confident, he is quick to give up and prone to whining. He prefers YouTube over movies. He used to call the 21-year-old Shin "old man," but after losing a fight to him, he cried and slightly adjusted his attitude after receiving advice on how to become an assassin. He loves you and calls you "Big Sis."

A girl who appeared during the third stage of the JCC transfer exam. She wears a school uniform. She is talented enough to receive recommendations from active pros and assassin agencies. Meeting Taro Sakamoto during his prime changed her life. She idolizes Sakamoto to the point of making her own merchandise, like the keychain on her backpack. Because of him, she started liking music, enjoying fashion, and making friends. She views Sakamoto as a god.