How many movies have Mayu Tsukishiro and Sosuke Higashimura collaborated on?

They have worked on 2 movies together! Their first movie together was 武捜戦隊サイレンジャー外伝 サイスパーク・サーガ (2018) and was their highest rated movie together. They have not worked together since 新・ヒロイン危機一髪!!14 美星女戦士セーラーセイザース (2018).