Ben Gongzhu de An Wei Neixin Dan Mu Tai Duo

The doomed princess can read the mind of her strange new bodyguard. When she saw her eventual tragic end in his mind, the princess was determined to grab on to the powerful bodyguard to help change her fate! The cold-blooded bodyguard had actually transmigrated from another world, and to return home, he must complete the mission given by the System – to destroy the princess's dynasty and create a new kingdom. But now he finds himself being seduced by the princess instead!

(Source: Bilibili, translated)