How many movies have Keiko Onodera and Kohei Tanaka collaborated on?

They have worked on 3 movies together! Their first movie together was Zorori the Naughty Hero: Defend the Dinosaur Egg! (2013) and was their highest rated movie together. They have not worked together since Zorori the Naughty Hero: The Secret of Double Z (2017). They are most known for their animation films together.