The Fruits Basket -prelude- movie will include the newly animated story of Tohru's parents, Kyoko and Katsuya Honda.
The prequel content, entitled Kyoko and Katsuya's Story, was previously announced as a spinoff series last summer. That story, which was part of the original manga but was not included in the animated adaptation, will now apparently be integrated into the compilation film Fruits Basket -prelude-. The new movie will mostly be comprised of footage from the 2019 reboot series, but will also include all new scenes written by creator Natsuki Takaya. The new scenes will take place after the events of the series and will focus on Tohru and Kyo. The cast and crew of the animated series will all reprise their roles for the movie, which will be released in Japan simultaneously in both theaters and on Blu-ray on Feb 18. An international release for the movie has not yet been announced at this time. The official website from the movie also revealed a new poster, which showcases a young Kyoko and Katsuya.
Fruits Basket was originally published in 1998 and is now widely regarded as one of the most influential and foundational works of the shojo genre. The series tells the story of Tohru Honda, an orphaned schoolgirl who has managed to maintain a cheery disposition despite multiple tragedies in her life. After discovering that she is living alone in a tent in the woods, she is offered a place to stay within the home of Yuki Soma, a handsome and intelligent young man who is also the most popular boy at her school. From there she meets the rest of the Soma family, including Shigure Soma, a perverted author, and Kyo, a martial artist with a fiery temper, who shares an important connection to Tohru's family and past. Tohru also learns of the Soma family curse: whenever a member of their family is embraced by someone of a different gender, or their bodies are reduced to a weak and stressed state, they will transform into one of the animals associated with the Chinese zodiac.
Takaya's manga was originally adapted into a 26-episode anime series in 2001 by Studio DEEN. This series featured numerous changes to the source material and only adapted part of its plot. A rebooted anime series, this time produced by studio TMS, began airing in 2019. The series was co-produced by Funimation and ran for three seasons. The reboot aimed to be a more faithful adaptation of Takaya's manga than the 2001 anime.
Fruits Basket is available for streaming on Funimation, Crunchyroll and Hulu. The manga is currently being distributed in North America by Yen Press.
Source: Official Fruits Basket Website