Miyazawa had a bad life since he was born. His mother left with someone else when he was a child, and his father didn't love him at all. He not only had to work to support himself, but also to support his father. Despite this, what he heard when he came home one day was that his father actually wanted to sell him to the darkest place in the world. It was also that night that he ran out of the house and met a purebred vampire-Kitahara Ze. After that, he followed Kithara Ze to live in the vampire world, but in the end something unexpected happened that neither of them could have predicted...