How many movies have Masayuki Sekine and Tsutomu Shibayama collaborated on?

They have worked on 2 movies together! Their first movie together was Doraemon: Nobita's the Legend of the Sun King (2000) while their highest rated movie together was Doraemon: Nobita and the Winged Braves (2001). They have not worked together since Doraemon: Nobita and the Winged Braves (2001).