How many movies have Katsuya Kikuchi and Mitsuru Obunai collaborated on?

They have worked on 3 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 Gyo: Tokyo Fish Attack (2012). They are most known for their animation films together.