How many movies have Kousaku Taniguchi and Megumi Toyoguchi collaborated on?

They have worked on 1 movie together! Their first movie together was That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond (2022) and was their highest rated movie together. They have not worked together since That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond (2022).