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 13Space Pirate Mito 2Anime
Up to EP 12Shomin SampleAnime
Up to EP 25Log HorizonAnime
Up to EP 1K: Seven Stories - The Idol KAnime
Up to EP 48Brave Police J-DeckerAnime
Up to EP 4Kamisama Hajimemashita: Kako-henAnime
Up to EP 1Armed Blue GunvoltAnime
Up to EP 25Gundam Build DiversAnime
Up to EP 25Hayate the Combat Butler!!Anime
Up to EP 1Initial D Third StageAnime
Up to EP 13Uta no☆Prince-sama♪ Maji Love Legend StarAnime
Up to EP 13Concrete RevolutioAnime