How many movies have Eiko Masuyama and Keiko Konori collaborated on?

They have worked on 4 movies together! Their first movie together was Lupin the Third: Alcatraz Connection (2001) while their highest rated movie together was Lupin the Third: Operation: Return the Treasure (2003). They have not worked together since Lupin the Third: Operation: Return the Treasure (2003). They are most known for their crime films together.