Magic blood does not dilute. Yokai blood does not dilute. God blood does not dilute. All your life, your parents have never allowed you near any large bodies of water. Never once have they taken you to the beach, or even to a pool. For years, you've thought that they simply don't like to swim. In reality, they fear that if you venture into your great-grandfather's domain, he will find you, and you may never return.