The show follows Kyosuke Date a young man who is stabbed to death by his own mother. However, he doesn't die and instead awakes to find he can transform into a terrifying monster. He then sets out to find a sister he didn't know existed, discover why nhis mother stabbed him and find out whjy he isn't dead.
The plotline is one of the most difficult to follow I have ever watched and the characters are laregely irrelevant. But the visuals are great and the fight sequences are amazing. In short if you don't mind not understanding anything that happens then this is for you.