Has His Highness Been Assassinated Today?

[A Narcissistic "Foolish" Prince VS A Cold-Blooded Assassin]

Liu Yunmo, a martial arts assassin, unexpectedly saves the fourth prince, Wen Qianshan, who faked his death during a coup, and is entrusted by the prince himself to escort him back to the capital. On the way, they are pursued by Regent King Wu. When Wen Qianshan is killed, Liu Yunmo is trapped in an endless cycle of regression.

(Source: Bilibili, translated)