a thirteen-episode anime television series by Oriental Light and Magic aired between April and July 1999, and a second anime, To Heart: Remember My Memories, aired between October and December 2004. The first anime was licensed by Right Stuf International for distribution in North America; the first DVD was released in March 2007. Two manga series were produced, both illustrated by Ukyō Takao and serialized in MediaWorks manga magazine Dengeki Daioh. The first manga, which ran between October 1997 and December 1999, was based on the original visual novel, and the second manga, which ran between November 2004 and July 2005, was based on the anime To Heart: Remember My Memories. A drama CD entitled Piece of Heart was released in October 1999.After completing Shizuku and Kizuato, main planner and scenario writer Tatsuya Takahashi began conceptualizing the third entry to the Leaf Visual Novel Series, which would later become To Heart. Takahashi originally considered creating a story with dark fantasy and gothic themes, but changed his approach in order to avoid making three consecutive works with dark themes. He then settled on creating a romance, and later incorporated comical elements. Early in development, Takahashi consulted frequent collaborator Tōru Minazuki for the creation of the story. The two originally considered creating the story and characters entirely by themselves, but after Minazuki expressed his concern that having only six heroines is not enough to exemplify a romance theme, the two asked writer Saki Aomura and illustrator Hisashi Kawata to assist in the project's development. Out of the ten heroines created, Takahashi wrote the scenarios for Akari, Multi, Tomoko, Serika, Aoi, and Ayaka; Aomura authored the scenarios for Lemmy, Kotone, and Shiho; and the scenario for Rio was written by a third writer named Udaru Harada. Minazuki designed and illustrated Takahashi's characters, while Kawata illustrated the remaining characters.