This protagonist is really good

Story of: This protagonist is really good[Five guaranteed updates every day!] Lu Tianhao accidentally came to a parallel world and became a villain. Fortunately, he was born into a powerful family. His father is a strong man among the eighteen powerful families and a powerful lord! Even more fortunate is that the Lu family actually has its own army and even its own nuclear arsenal! Just when Lu Tianhao was excited and thought that he was about to become the chosen one, he received a sad news. The only ability of the system he obtained was to steal rewards from other protagonists' systems. System: I stole skills. How did you use them into mathematical weapons and causal weapons? Lu Tianhao: I am dull and don't know how to practice, so I had to cheat.