"Solliev0" is a small but hidden popular Italian restaurant run by half-brothers Fuyuma (Takuma Wada) and Haruyo (Toshiyuki Someya). Apart from the food, there is a "secret menu" that solves the problems of customers who visit the restaurant, and while running the restaurant, Haruyo's childhood friend Torataro (Ryodai Hirono) and his friend Sora (Ryugi Yokota) We are solving customers' problems. Meanwhile, Haruyo, the heir to the large company Amazuki Holdings, has not yet fulfilled his promise to his father that he would inherit the family when he turns 30, and asks Kaede (Ikumi Isaka), the president's secretary, to return to the company. is being urged daily. One day, a troubled boy came to Solliev0.