Sui Kurata is a co-pilot who encountered a trouble flying the aircraft due to the bad weather. While he was busy in the cockpit together with the captain, he heard the calm voice of a female air traffic controller from the radio as she helped the aircraft to successfully land at Haneda Airport. Sui fell in love with the voice of the female air traffic controller but she is someone whose face and name are unknown. A love story later developed as the two meet again face to face.