How many movies have Mitsuru Obunai and Shizuka Kurosaki collaborated on?

They have worked on 4 movies together! Their first movie together was Magical Sisters Yoyo & Nene (2013) 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 fantasy films together.