How many movies have Kōji Yashiro and Toyohiro Hoshino acted in together?

They have worked on 1 movie together! Their first movie together was Shinderera Ekusutashii: Kuroi Hitomi no Yūwaku (1988) and was their highest rated movie together. They have not worked together since Shinderera Ekusutashii: Kuroi Hitomi no Yūwaku (1988).