Zhu Yun guesses correctly that Li Xun is creating an app to sell to Blue Crown in lieu of the website project Xiao Bei is spearheading. Zhu Yun, Li Xun, and Jian Hong decide to all work together on the app. Xiao Bei finds out from Blue Crown that Li Xun has proposed the app, and they want to stop the website project and work on the app instead. Zhu Yun overhears Xiao Bei threatening Li Xun, so she decides to do something about it. (Source: frankly at MyDramaList)