How many movies have Kaori Rin and Sosuke Higashimura collaborated on?

They have worked on 3 movies together! Their first movie together was ヒロインピンチオムニバス17 聖装戦士セラリオン (2016) 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).