How many movies have Takeshi Kiba and Teruyuki Obayashi collaborated on?

They have worked on 1 movie together! Their first movie together was Hontō ni Utsutta Isekai Dōga Tōkō 10 Hon (2023) and was their highest rated movie together. They have not worked together since Hontō ni Utsutta Isekai Dōga Tōkō 10 Hon (2023).