In this outrageous action comedy, we follow Hubert, a stereotypical French cop who travels to Japan after receiving news of the strange death of his ex-girlfriend, with whom he had a short but intense romance years ago. When he arrives in Tokyo, he discovers that he has inherited an unexpected fortune: a home in the heart of the city and the responsibility of taking care of a troubled teenager, who turns out to be the daughter of his late lover. Things get complicated because the girl, who seems to have more issues than her adoptive father can handle, is also at the center of a slippery game involving local criminals.
Caught between the shocking culture and his inexperience in the land of the rising sun, Hubert finds himself torn between his duty and the need to get involved in the young girl's life. With each step he takes, he finds himself grappling not only with the complex landscape of Japanese organized crime but also with his own insecurities as an unexpected father. As increasingly absurd situations unfold, Hubert must learn to adapt and trust his instincts to protect his new family.
With a stylish touch of humor and unrestrained action, this story intertwines elements of Eastern and Western culture, leading our protagonist on an unexpected journey of personal discovery. In this cultural melting pot, love and loyalty are put to the test, all while guilt from the past lurks in the shadows.