Another World: Tomoyo Chapter, Clannad Wiki

Another World: Tomoyo Chapter (もうひとつの世界智代編, Mō Hitotsu no Sekai Tomoyo-hen?) is the twenty-fourth episode of Clannad, an original video animation. This is a stand-alone episode, that does not relate to the main series, and is set in an alternate timeline, highlighting segments of Tomoyo's visual novel route. The episode aired in Japan on 16 July 2008, and in the United States on 16 August 2009. In an alternative timeline where Tomoya and Tomoyo are secretly dating, Tomoyo becomes student council

Clannad: After Story - Mou Hitotsu no Sekai, Kyou-hen

坂上智代, Wiki

Clannad: After Story Another World: Kyou Chapter (TV Episode 2009) - IMDb

CLANNAD Another Story(Manga) - Baka-Tsuki

Tomoya Okazaki, Clannad Wiki

Tomoya Okazaki, Clannad Wiki

Clannad After Story - Another World: Kyou Chapter - AstroNerdBoy's Anime & Manga Blog

Clannad Specials - Trakt

Spoilers][Rewatch] Clannad OVA 1: Another World: Tomoyo Chapter : r/anime

Tomoya Okazaki, Clannad Wiki

Tomoyo Sakagami Character Blog, Clannad