On their official Twitter account, Tatsuki shared prequel vignettes for the Kemurikusa TV series. These included non-uniform episodes, such as ep 0 (unnumbered), 0.5-0.9. Following the conclusion of the TV series, Tatsuki released another vignette titled "ep 12.1" on Twitter and YouTube the following week. This brought the total count of web shorts related to the TV series to 7.