Bloody Moon

Radan should have lived a blessed life as a prince, but a dark curse doomed him to become a killer the moment he was born. And when his mission to assassinate the prince of an enemy nation goes awry, Radan finds himself at the mercy of his target, Crown Prince Leshak. Unaware of Radan's true identity, Leshak shows him kindness instead of cruelty. Now that he's caught between his duty to his family and his blossoming feelings for Leshak, Radan must choose between being a lover or a killer...

(Source: Tappytoon)