How many movies have Sei Izumida and Takashi Ukaji collaborated on?

They have worked on 2 movies together! Their first movie together was Kyotaro Nishimura Travel Mystery 66: Kushiro-Obihiro Murder Route (2016) and was their highest rated movie together. They have not worked together since Kyotaro Nishimura's Travel Mystery 67: Murder in Hakone - Leaves & Mountains (2017).