Two teenage girls, Chisato (Akari Takaishi) and Mahiro (Saori Izawa), are highly trained contract killers employed by a mysterious assassination guild. As they near high school graduation, their handler orders them to "go undercover" by moving in together in Tokyo and taking part-time jobs—intended to mold them into “normal” members of society by paying bills, filing taxes, and pretending to be typical young adults .
Their new routines quickly unravel in comedic and chaotic fashion. Mahiro, the introverted and socially awkward one, disastrously bombs job interviews and occasionally hallucinates killing sprees during mundane tasks like wiping tables . Meanwhile, Chisato, loud and excitable, lands a role at a cosplay-style "hostess" café—but her penchant for violence soon turns a simple shift into a bloody scuffle, much to her manager’s dismay . Their incompatible personalities surface in everyday tension, but their friendship remains at the heart of the film .
Trouble escalates when Chisato's café draws the attention of a yakuza boss and his two trigger-happy offspring, Himari and Kazuki. What begins as curiosity leads to hostility when Chisato’s crew inadvertently becomes part of the boss’s plan for expanding his criminal empire with a "female-centric" angle—culminating in a violent showdown between the girls and the yakuza siblings .
In the film’s climax, after humorous misadventures, Chisato and Mahiro are forced to unite their vastly different skills and temperaments. The result is a high‑octane, martial‑arts‑fueled finale masterminded by veteran choreographer Kensuke Sonomura, showcasing inventive long‑take fight choreography that blends acrobatics, gun‑fu, and raw physical combat . Amid the chaos, the girls reaffirm their bond—proving that their friendship, more than their lethal training, defines them.