Sana Narukawa is a young CEO who founded the startup "Dream Pony" that deals with educational apps when she was 23. Although reckless, Sana has a goal of making "Dream Pony" into a unicorn company whose its business is available to everyone all over the world within a decade. The company did well when it was first launched but Sana became frustrated as there hasn't been any huge growth. She dedicates her time mostly on her work and has been neglecting her private life and romance. One day, a middle-aged salaryman Satoshi Kotori decides to change his job and starts working at "Dream Pony". At first, Sana is not fond of Satoshi but the two become closer as Satoshi helps Sana by giving advice based on his experiences. Meanwhile, Sana's co-founder Kou Suzaki has been in love with Sana but he is unable to suppress his feelings after the arrival of Satoshi. The team now gets caught in a triangle between work and love.