How many movies have Piero Da and Ria Kashii collaborated on?

They have worked on 1 movie together! Their first movie together was Her Older Sister Is Just Asking To Get Fucked - My Girlfriend's Older Sister Is A Tempting Slut... Ria Kashii (2016) and was their highest rated movie together. They have not worked together since Her Older Sister Is Just Asking To Get Fucked - My Girlfriend's Older Sister Is A Tempting Slut... Ria Kashii (2016).