Along with the development of mobile internet, the time of mobile real-time PvP is coming. LuanDouXiYou, originally as an asynchronous battle game, has also completed the technical iteration from asynchronous PvP to synchronous PvP. In this lecture, we will introduce the server architecture of LuanDouXiYou, and show you the solutions that we have tried for solving network latency, data consistancy problem when implementing reat-time PvP.