How many movies have Sho Aikawa and Tsutomu Kashiwakura collaborated on?

They have worked on 3 movies together! Their first movie together was Urotsukidōji: Legend of the Overfiend (1989) while their highest rated movie together was Chôjin densetsu 3: Kanketsu jigoku hen (1989). They have not worked together since Wrath of the Ninja: The Yotoden Movie (1989). They are most known for their animation films together.