How many movies have Ogita Kouichi and Sayu Ootsuki collaborated on?

They have worked on 1 movie together! Their first movie together was 凍てついた明日－ボニー&クライドとの邂逅－ (2008) and was their highest rated movie together. They have not worked together since 凍てついた明日－ボニー&クライドとの邂逅－ (2008).