Kentai Machiyama (Yuyama Tieji) is originally a pianist. After being fired, he inexplicably goes to what is said to be "paradise", where he becomes a clerk in the "Paradise Bookstore". Jian Tai's main task is to read to customers who come to the bookstore. One day, a beautiful woman named Suniyama Xiangzi (Takuchi Jiezi) came to the store. To Jian Tai's surprise, this Xiangzi was her former music instructor. It was precisely because of admiration for Xiangzi that Jian Tai embarked on the road to music. When the camera turns back to the world, Takamoto (Kagawa is acted the role of) is a master at making fireworks, but in an accident, his wife lost her hearing because of the explosion of fireworks, and Hashimoto, who was full of self-remorse, decided never to touch fireworks again. After that, a girl named Nagase Xiangxiazi (acted the role of Takeuchi) found Takamoto, hoping that he could regain his skills and make unique "love fireworks" for the fireworks show. Hashimoto found that this young girl named Xiang Xiazi has a face that bears an uncanny resemblance to her wife.