How many movies have Ma Yunying and Tang Zhijun collaborated on?

They have worked on 4 movies together! Their first movie together was Fireworks (2017) while their highest rated movie together was Maquia: When the Promised Flower Blooms (2018). They have not worked together since Kaguya-sama: Love Is War -The First Kiss That Never Ends- (2022). They are most known for their animation films together.