Some of the people have rated this show a 1 out of 10. And I understand why. The Plot is so well written, you won't even know the real storyline until season 3 or whatever. On the outside it seems a pretty simple story. Demons vs humans. Who will win? That is hardly the story at all... and even thinking that, I watched through the first 2 seasons. And even then I was hooked because of great story building and great great climaxes and actions and all. I thought season 1 ending was insane. Then season 2 came. I thought It was even crazier. Then season 3! A literal masterpiece... specially the second arc. and the 4th season is expected to be God Level. And I expect nothing less from the greatest anime of all time. That's how good the story is! It's complex yes. Greatest Plot I have ever seen on a show. I love breaking bad, I love Avatar the last air-bender, I love Game of thrones. But The story line, music, and the voice acting are all 10/10 easily. Do yourself a favor, don't judge it by it's cover, get through some quality anime till you reach God level story telling. You will thank me when you reach the season 3 finale, GUARANTEED!