The story is all about the Diary of the Vampire, as the title suggests, Vampire Diaries. So the story hold talks, talk about the diaries of the vampire and the main protagonist, says Steven. As for now, I have watched just three or four episodes. So until now, the protagonist is Steven. He's a vampire and he is protecting the heroine. So she is kind of a good one. She's actually protected by the vampire against the Damon. He's the antagonist