Kurata Sui is a 30-year-old man, who is honest and kind to people. He first went on an airplane when he was middle school student. After that, he has always wanted to become an airplane pilot. Finally, after going through rigorous training, he has been promoted as the first officer for an airline. One day, as the first officer of the flight, he experiences a difficult time because of bad weather. Due to the excellent work of a female air traffic controller, Kurata Sui and the captain are able to land the plane safely at Haneda Airport. Since then, even though he doesn't know her name or what she looks like, Kurata Sui has fallen in love with the air traffic controller just by listening to her voice.
The female air traffic controller, who Kurata Sui is in love with, is Shibuya Mayu. As an air traffic controller, she has the skills to respond quickly to emergency situations with a cool and calm, but precise manner. Although she excels in her job as an air traffic controller, her social skills are not nearly as good. She has difficulty with expressing her feelings to others and does not feel comfortable hanging out with others. Suddenly, Kurata Sui appears in front of her and approaches her.