When Narukawa Sana was only 23-years-old, she co-founded startup company Dream Pony. The company's product is an education app. Her dream was to have people all over the world use her app. Now, Narukawa Sana is 26-years-old. Her company is in its 3rd year of existence. The company grew rapidly initially, but is now experiencing a decline in its growth. Due to the slowdown, Narukawa Sana feels nervous everyday. In her personal life, she has feelings for Suzaki Ko, who is a co-founder of Dream Pony. He is unaware of her personal feelings for him.
One day, middle-aged man Kotori Satoshi begins to work at Dream Pony as Narukawa Sana’s subordinate. Before working at Dream Pony, Kotori Satoshi worked for a more traditional type company, which had a totally different work environment from Dream Pony. At first, Narukawa Sana doesn't like working with her new employee, but she gets closer to him and receives wise advise based on his long work experience. Meanwhile, Narukawa Sana continues to face hardships at work and her love life.