Hitsuji-chan in the Dark

Kusahara Hitsuji, the most beautiful girl in the school, falls in love with a transfer student named Kokuyou Haku, whose entire body is covered in bandages.
However, Kokuyou Haku is in fact a witch hunter who hunts 'black witches'!
When the love of a sheep embraces Kuroyoh, who curses witches and lives to hunt witches, the story begins to take a major turn -.