How many movies have Katsuhiro Nakano and Keiji Ota collaborated on?

They have worked on 5 movies together! Their first movie together was Night Is Short, Walk On Girl (2017) while their highest rated movie together was Teasing Master Takagi-san: The Movie (2022). They have not worked together since The Tatami Time Machine Blues (2022). They are most known for their animation films together.