How many movies have Akane Sakai and Takeshi Koike collaborated on?

They have worked on 1 movie together! Their first movie together was Redline (2010) and was their highest rated movie together. They have not worked together since Redline (2010).

Role
Boiboi (voice)
Crew
Director
Crew
Animation Director
Crew
Background Designer
Crew
Storyboard Artist
Crew
Key Animation