Prequel vignettes to the Kemurikusa TV series released on Tatsuki's official Twitter. They have an irregular episode count as follows: ep 0 (in actuality, it is unnumbered), 0.5, 0.6, 0.7, 0.8, 0.9. After the Kumurikusa TV series finished airing, Tatsuki released another vignette the following week numbered ep 12.1 both on his Twitter account and official YouTube channel for a grand total of 7 web shorts tied directly to the TV series.
Up to EP 11Heaven Official's BlessingAnime
Up to EP 12I Was Reincarnated as the 7th Prince so I Can Take My Time Perfecting My Magical AbilityAnime
Up to EP 1The JourneyAnime
Up to EP 1Sword Art Online II: DebriefingAnime
Up to EP 24Rainbow DaysAnime
Up to EP 1The Seven Deadly Sins the Movie 2: Cursed By LightAnime
Up to EP 12Malevolent Spirits: MononogatariAnime
Up to EP 1Tako ni Natta OkaasanAnime
Up to EP 13Theatre of Darkness: Yamishibai 8Anime
Up to EP 1Nekketsu Jinmen Inu: Life Is MovieAnime
Up to EP 12Assassins PrideAnime
Up to EP 1Mononoke the Movie: Phantom in the RainAnime