The immortal vampire

Storyline:-
Long ago there lived a young man who was half human and half vampire.His mother was a vampire and his father was a human.He made a biggest sin that he fall in love with a human.His elders punished him by giving him jinx that he will never die and be immortal until someone comes in his life and palys the manjikseok which is an old times piano.Manjiseok is an old times piano and sound does not comes out of it.It is a soundless piano.Unless one person will play the piano and sound will come out.But when the sound of piano comes out of it Jungkook(the vampire) will die right away in the full moon night.He will disappear in the thin air.The woman he fall in love with is the only one who can play that piano.But he could not recognize her but still he has some memory that he once fell in love with a human girl in which return he was jinxed.
End of the story line.