I Can Kill Enemies and Explode My Cultivation Level, Adding Endless Points

The introduction is too weak, so please move on to the main text! ! : Ye Wushuang comes from Blue Star, accidentally crosses the Shenyuan Continent, and becomes the third prince of the Tianyu Dynasty, with a respected status. I originally thought I could live a leisurely and comfortable life from now on, but the system was accidentally awakened. Killing enemies will increase your cultivation level! Killing monsters and monsters can also increase your cultivation level! "Congratulations to the host for killing a second-grade warrior monk, and you will be rewarded with half a year's worth of cultivation!" "Congratulations to the host for killing a second-level demon, and you will be rewarded with one year's worth of cultivation!" "Congratulations to the host for completing the system task, and you will be rewarded with a full-level skill fusion card!" "Congratulations to the host for completing the system task and being rewarded with two master-servant contracts!" "Congratulations to the host for obtaining 3 character power summoning cards." "Congratulations to the host for successfully taming a fourth-level early stage spiritual pet!" ………… Entering the palace to meet the emperor, he learned that he was not his biological son and would inherit the throne. Faced with a mysterious life experience and a bizarre assassination, what choice will Ye Wushuang make? ​Is there anything fishy in it? What kind of conspiracy is hidden behind this...