Japan's most capable spy, Jin Clice, lives for danger and the thrill of espionage. That changes the moment a KGB assassination attempt leaves him mortally wounded. Rather than let their star agent slip away, the government makes a desperate call: they'll transplant his consciousness into a new body. The catch is the only available vessel belongs to a recently deceased professional tennis player, and she happens to be a woman. Suddenly trapped in an unfamiliar body with curves he never asked for, Jin must navigate the spy game while learning the hard way that being underestimated has its advantages. His legendary charm and suave confidence clash violently with his new reality. Every mission becomes a comedy of errors as he adjusts to life in a female form, complete with the social complications that come with it. What starts as an unwanted tragedy becomes Jin's most bizarre assignment yet. Part action thriller, part fish-out-of-water comedy, the show follows a spy who has to prove he's still lethal, even if nobody takes him seriously anymore.