How many movies have Seiko Asai and Takayuki Gotan collaborated on?

They have worked on 5 movies together! Their first movie together was Naruto Shippuden the Movie: The Lost Tower (2010) while their highest rated movie together was The Last: Naruto the Movie (2014). They have not worked together since The Last: Naruto the Movie (2014). They are most known for their animation films together.