How many movies have Jouji Nakata and Ryoko Shiraishi acted in together?

They have worked on 7 movies together! Their first movie together was Towa no Quon 1: The Ephemeral Petals (2011) while their highest rated movie together was Working!!! Lord of the Takanashi (2016). They have not worked together since Working!!! Lord of the Takanashi (2016). They are most known for their animation films together.