How many movies have Kinoko Nasu and Seiji Matsuda collaborated on?

They have worked on 11 movies together! Their first movie together was The Garden of Sinners: Overlooking View (2007) while their highest rated movie together was Fate/stay night: Heaven's Feel III. Spring Song (2020). They have not worked together since Fate/stay night: Heaven's Feel III. Spring Song (2020). They are most known for their animation films together.