Clannad: Another World, Kyou Chapter is a oVA anime that premiered in summer 2009, produced by Kyoto Animation.

About the production: the story comes from a visual novel, there is 1 episode of about 24 minutes and its current status is "finished".

Its main genres are drama, romance and slice of life, with themes such as Coming of Age, School, Alternate Universe and Twins.

On AniList, Clannad: Another World, Kyou Chapter has an average score of 75%, a very good score, and appears on 57,091 users' lists.

Included in the 8th and final DVD of Clannad ~After Story~ is an extra episode set in an alternate universe. Here, Fujibayashi Kyou is the main heroine in place of Furukawa Nagisa. Love can be wonderfully exciting, but also extremely painful. Fujibayashi Ryou, Kyou's sister, is in love with Okazaki Tomoya, the male protagonist. With the help of Kyou, Ryou manages to sum up the courage to ask him out and now Tomoya and Ryou are a couple. However, as things progress, Kyou begins to acknowledge her feelings for Tomoya, and a love-triangle is formed. As everything is revealed, the sisters learn the pains of love and try to decide between the two loves of their life: Tomoya, or each other. [Written by MAL Rewrite]

Official synopsis from AniList.