Token !!!

there's this manhwa about a girl (with long, platinum—almmost white curly hair) leaving her home to find her master who saved her from a monster when they were kids. (he's dark skinned, handsome (*) turns out she has a knack for killing monsters, and she's reallyyy good with a gun. at some point, she starts to sense the monsters too. later on she gets hypnotized by one of the other characters to give information. this is genuinely all i remember and im itching to get the title