Big Sister
Mai watches over Sayaka from morning until night. To her that is the natural course of each of their days. One day, Sayaka tries to leave Mai's side when she has business in the laboratory. Source: crunchyroll
Aired 10/02/2019EP 5 - Big Sister

2019
Katana Maidens ~ Mini Toji
The anime will feature mini versions of the characters from the Toji no Miko television series and the smartphone game.
Excludes episode 0 recap.