Everlasting Heart is a oNA (web) anime that premiered in spring 2001.

About the production: the story comes from an original script, there is 1 episode of about 13 minutes and its current status is "finished".

Its main genres are drama and slice of life.

On AniList, Everlasting Heart has an average score of 59%, an average score, and appears on 871 users' lists.

Kimi to Boku (You and I) is the story of an aspiring mangaka and his cat, told from the cat's perspective. It follows the friendship between the cat and the young man from when they first meet up to when they must part. Note: The first version was released to the public in 2001, since then there have been version upgrades, possibly with additional animation or simply improved quality. The English version also contains a prologue about the history of the Tanabata festival, making it much longer. (Source: AniDB)

Official synopsis from AniList.