How many movies have Masaki Hiraoka and Ryuji Shiromae collaborated on?

They have worked on 4 movies together! Their first movie together was Doraemon: Nobita's Secret Gadget Museum (2013) while their highest rated movie together was Mobile Suit Gundam: Cucuruz Doan's Island (2022). They have not worked together since Mobile Suit Gundam: Cucuruz Doan's Island (2022). They are most known for their animation films together.