Seven Rules for Old Houses

>I went on a blind date and got a copy of the Su family's seven house rules. >If you want to marry the daughter of the Su family, you have to pass all seven levels. >The uncle who broke through last time has died in the old house. I thought it was just a wealthy family trying to make things difficult for me, until I dug out the old notes left by my father and saw the exact same seven commandments written on the paper. It turns out that the Su family's family rules are never to restrain the family, but to use living people to feed the things hidden in the house. People who married into the Su family never left the old house alive.