The Stunning Assassin: Your Highness, Don't Go Too Far

A genius female assassin from the 21st century unexpectedly transmigrates due to a twist of fate. While disguised and out in public, she somehow ends up having an encounter with a certain prince that neither of them should have had. She can’t help but feel suspicious. She won’t easily trust the man she met after transmigrating. With her instincts as an assassin, she knows she must proceed cautiously at every step to claim the final victory.