Satoko Kusagakure (Kusagakure Satoko)
Voiced by: Haruna Mikawa
An escapee ninja from the hidden village somewhere in the mountains of rural Japan. She has poor martial arts skills, and was often used to do menial tasks that other ninjas in the village considered beneath them. However, she learned how to clean, cook, and otherwise take care of others through her toil. She specializes in turning non-living people and objects alike into piles of leaves, making it easy to hide evidence and dead bodies.

Konoha Koga (Koga Konoha)
Voiced by: Kana Hanazawa
A rookie assassin and high-school girl seeking to rise through the rankings. Incredibly skilled at assassination and murder, she had trouble rising through the national assassin rankings as she often used points to take care of dead bodies and related chores rather than do them herself. After meeting Satoko, she finds herself slowly rising in rank, though she has trouble warming up to anyone besides herself.

Marin Izutsumi (Izutsumi Marin)
Voiced by: Yū Serizawa
A young mad scientist who designed Roboko to spy on Konoha and remove the competition, later becoming a reluctant friend of both the ninja an assassin.

Kuro
Voiced by: Eri Kitamura
The leader of the escapees from the ninja village who actually fled to be with her lover, Yuriko, in the civilian world. A very strong ninja in her own right, though she rarely shows off her skills, she does have the power to briefly hypnotize people and modify their memories. Kuro also enjoys gambling at local pachinko parlors, which frustrates her partner to no end.

Yuriko
Voiced by: Rumi Okubo
Kuro’s lover willing to offer moral support to her and her friends, though she repeatedly tries to rein in Kuro’s frivolous spending on pachinko and other unnecessary objects.

Roboko
Voiced by: Haruna Mikawa
Initially designed by Marin to spy on Konoha, Roboko is a robotic copy of Satoko. However, Konoha soon got attached to Roboko, making Satoko jealous and eventually leading to her destruction. Later on, Marin makes a new version of Roboko from her saved data.