How many movies have Hiroshi Nishikiori and Yoko Hikasa collaborated on?

They have worked on 3 movies together! Their first movie together was A Certain Magical Index: The Miracle of Endymion (2013) while their highest rated movie together was Trinity Seven: Heaven's Library & Crimson Lord (2019). They have not worked together since Trinity Seven: Heaven's Library & Crimson Lord (2019). They are most known for their comedy films together.