How many movies have Ei Aoki and Takako Honda 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: Remix -Gate of seventh heaven (2009). They have not worked together since The Garden of Sinners: Remix -Gate of seventh heaven (2009). They are most known for their animation films together.