Searching for korean manga

(So yeah, I'm not sure whether it's manhwa or manhua)
But anyway, I'm searching for a "manga" with a girl who turns into a vampire in it. It's in colors, she has brown hair and dark eyes when she's normal and white hair and blue eyes when she's a vampire, she's very strong too.


Hope that's enough, thank you in advance!

(oops I forgot to start politely so, yeah, I'm no savage, so here you go: Hello fellow readers!)