### Case Summary Moumeng Company and Chaojiaochong Company entered into the *Cooperation Agreement on Customized Research and Development of Game Products*, which stipulated that Chaojiaochong Company shall customize and develop the game software *Wo Ju Da De Zei Zhun* (I'm Extremely Skilled at Sniping) for Moumeng Company, and the relevant intellectual property rights shall vest in Moumeng Company. However, Chaojiaochong Company uploaded *Wo Ju Da De Zei Liu* (I'm Exceptionally Skilled at Sniping), a fully plagiarized version of the aforesaid game software, without authorization. Therefore, Moumeng Company instituted proceedings before the court, claiming that Chaojiaochong Company's acts constitute copyright infringement and unfair competition.
A seemingly "ordinary" intellectual property rights (IPR) protection case was completely diverted from its original development trajectory, as the plaintiff's retained counsel made an unexpected discovery during pre-trial preparation and submitted a piece of supplementary evidence. Consequently, the second defendant, Taobao Company, which originally believed itself to be free from liability, was adjudged to bear joint and several liability for the infringing acts committed by the first defendant.
Presentation of Issues
