Can a young man track down his Cinderella using her bra as his only clue? Amour (Okubo Mariko) is a Japanese student studying in Taiwan. When she accidentally drops her bra at the public laundry, a dog named Chocolate, who belongs to Song Yi Xiang (Wei Lian), picks up the bra and runs off with it. As Amour tries to run after the bra thief, she accidentally kisses Yi Xiang, who then loses consciousness. With the help of his roommate, Hua Mi Nan (Lian Zhong), Yi Xiang is determined to find the beautiful girl that he kissed. Can he find the mysterious “Bra Girl” with only her bra as the clue?