In the daily life of Minami Middle School where cherry blossoms and baseball are intertwined, the art student Xiaobo Shirei, who is burdened with a double destiny, is recording the most dangerous youth with a brush. As a pawn of a declining Japanese family, she was implanted with a monitoring chip by her stepfather, disguising herself as a mediocre student and lurking around the future leader of Vongola. When the surveillance target is the "natural-born killer" Yamamoto Takeshi - her carefully calculated daily life begins to collapse.
The burning pain from the cigarette scar on her left wrist is a constant reminder: My mother's life is in the hands of my stepfather, and every mistake may be a countdown to the funeral. But when Takeshi Yamamoto deliberately missed the ball and smashed her disguise glasses, when the baseball glove wrapped around her trembling fingertips to adjust the grip, and when the band-aid scented with lemon candy covered the self-inflicted scars, Xiaobo Shirei discovered that the crazy data on the monitor had betrayed the soul that had been trained as a weapon.
Concept: Xiaobo Xili's road to rebirth