Chibi side stories released alongside the main series.
Up to EP 24Sword Art Online: AlicizationAnime
Up to EP 1Aria the CrepuscoloAnime
Up to EP 1Natsume's Book of Friends: The Waking Rock and the Strange VisitorAnime
Up to EP 13Fanfare of AdolescenceAnime
Up to EP 12Ayaka: A Story of Bonds and WoundsAnime
Up to EP 1Otome wa Boku ni Koishiteru: Trinkle Stars The AnimationAnime
Up to EP 16Attack on Titan: Final SeasonAnime
Up to EP 12Otherside PicnicAnime
Up to EP 1Ninkuu: Knife no BohyouAnime
Up to EP 26Scarlet NexusAnime
Up to EP 12Pause! Let Me Check the Walkthrough FirstAnime
Up to EP 11Saekano: How to Raise a Boring Girlfriend .flatAnime