Just like with every other Disney and/or Pixar character in Disney Dreamlight Valley, Mulan has her own set of friendship quests that you can do as you level her up. Like many characters, there is a lengthy series of requirements that you must meet before you can do Mulan's second quest. To unlock The Shadow Play, Mulan must be at least Level Four and you will also need to have completed the quest to bring Minnie Mouse back to Dreamlight Valley.