How many movies have Keiichiro Sakagi and Tomoo Haraguchi collaborated on?

They have worked on 2 movies together! Their first movie together was Akio Jissoji's Wonder Museum 2 (1992) while their highest rated movie together was Sakuya: The Slayer of Demons (2000). They have not worked together since Sakuya: The Slayer of Demons (2000).