 After the completion of "Kanon", the Key staff started production on "Air" and expanded the number of people involved in this project compared to "Kanon".The executive producer for "Air" was Takahiro Baba from VisualArt's, the publishing company that Key is under.The planning for "Air" was headed by Jun Maeda who was also one of two main scenario writers, the other being Takashi Ishikawa.