How many movies have Jirō Ishikawa and Miho Wakabayashi collaborated on?

They have worked on 7 movies together! Their first movie together was MAID-DROID 2: Maidroid vs. Hostroids (2010) while their highest rated movie together was Rape Zombie: Lust of the Dead (2012). They have not worked together since Scissor Penis (2018). They are most known for their horror films together.