How many movies have Atsuhiro Iwakami and Emi Chiba collaborated on?

They have worked on 10 movies together! Their first movie together was The Garden of Sinners: Overlooking View (2007) while their highest rated movie together was The Garden of Sinners: Paradox Spiral (2008). They have not worked together since Backflip!! The Movie (2022). They are most known for their animation films together.