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's Tomoyo Chapter is also a Masterpiece

Clannad: Another World, Tomoyo Chapter - My Anime Shelf

Clannad: Mou Hitotsu no Sekai, Tomoyo-hen

Tomoyo Sakagami, Clannad Wiki

Tomoyo After ~It's a Wonderful Life~, Clannad Wiki

Clannad Another World: Tomoyo Chapter (TV Episode 2008) - IMDb

Tomoyo Sakagami, Clannad Wiki

Tomoya Okazaki, Clannad Wiki

Spoilers][Rewatch] Clannad Ep. 15: Stuck Problem : r/anime