Fruits Basket the Final follows Tohru Honda, an orphaned high school student who, after meeting Yuki, Kyo, and Shigure Soma, learns that twelve members of the Soma family are possessed by the animals of the Chinese zodiac and are cursed to turn into their animal forms when they are weak, stressed, or when they are hugged by someone of the opposite gender.
The Final season follows Tohru as she continues to live with the Soma family and discovers more about their curse. Along with her friends Arisa Uotani and Kakeru Manabe, she helps them break the curse while also trying to confront her own feelings for Yuki and Kyo. As the story progresses, new characters join in on their journey as they all work together to find a way to lift the curse once and for all.