After Overhearing My Heart, the Princess Couldn't Hold It Anymore

Plot Synopsis

Li Yunzhou traveled through time to ancient times with a system, but he refused the system tasks and enjoyed a life of idleness. So the system found another way. By giving superpowers to the princesses around Li Yunzhou, it forced him to get involved in national affairs, solve arithmetic problems, suppress rebellious ministers, change the fate of the country, and also won the favor of the princesses.