A naughty little girl, Xiaoyu, wandered into the evil world alone. She didn't know anything, but she accidentally met him, a hero of the world who had seen injustice on the road! Slowly she fell in love with this recognized elder brother! Gradually, she didn't want to face her feelings! Finally, because of his willfulness, he forced him to his best sister! Then she meets her sister's fiancé and then what! ! As the story continues, a story of naughty Xiaoyu's solo adventure is about to begin. . . . . . .