After Dōsei, the rest of Key's founding staff—Naoki Hisaya, Jun Maeda and OdiakeS—joined Tactics and contributed to two more games: Moon released on November 21, 1997, and One: Kagayaku Kisetsu e released on May 29, 1998. Due to differing opinions between Nexton and most of the production staff in Tactics on how to produce the brand's next game, most of Tactics' staff left Nexton to pursue work in another publishing company where they could have the freedom to produce their next game. Itaru Hinoue, who had previously worked at Visual Arts once before, introduced Key's founding members to the president of Visual Arts, Takahiro Baba. Baba gave the developers the freedom they desired, and they officially transferred to Visual Arts where they formed Key on July 21, 1998. With the production of Key's debut title Kanon still in its early stages, a brand name had still not been decided on by the developers. The tentative brand name was at first, but Jun Maeda was not pleased with this and wanted a name that would capture the image of the brand. Maeda came upon the name Key when he saw it on a sign for a musical instrument store he would always pass on his way to work and instantly liked the name. The name Key for the studio was ultimately decided by majority rule. Key released Kanon on June 4, 1999, as an adult game, though the scenes containing adult content were kept to a minimum. This gave the player more of a focus on the characters' stories and on the visuals and music, especially for a visual novel at the time of its release. A year later, on September 8, 2000, Key released their second game Air, which was also an adult game and similar in storytelling to Kanon. Key's third game Clannad is a visual novel similar to Key's previous games, but contains no adult content. Clannad was meant to be released in 2002, but was delayed, leading to the game finally being released on April 28, 2004. Seven months after Clannad's release, Key released their shortest game, Planetarian: The Reverie of a Little Planet, on November 29, 2004 with a rating for all ages. Planetarian, in contrast to Key's past games, is a linear visual novel that does not require the user to make choices during gameplay; this is what is referred to as a kinetic novel.