Please help me find this

Hey so I'm looking for a story I read a long time ago and I'll give all the details I can but if anyone knows what this is please lmk
So it's bl it's supernatural the main character is a vampire and he has golden blonde hair it's kind of a bob I'm pretty sure the whole thing was colored the other guy has black hair and it's really long I think he was an heir to some kingdom or something there's lots of different supernatural creatures the artstyle was beautiful and it wasn't that long. Please help