The content of the contract should be two-fold:

1. The Impaler temporarily obtains various vampire abilities, such as natural healing, superhuman senses, bat transformation, etc., but the price will be Surprisingly thirsty for human blood - this hunger far exceeds that of the ancestor who has become a vampire

2. After the plug-in is turned on, it lasts for three days. During these three days, the male pig's feet are not vampires, but they have all kinds of vampires. Ability, if you can endure the desire and temptation of blood-sucking in these three days, the male pig's feet will still turn back into an ordinary human after three days, then the ancestor will still stay in the cave and never see the light of day; if he cannot hold back, he will never be able to change again. If you return to humanity and are spoken to by your ancestors, you will lose your family, wife, and people, and you will have to pay a greater price than you are now. . . The male pig's foot became the second generation of the ancestor. The original line of the movie is "Maybe one day, I will call you to serve me." The ancestor was freed and returned to a normal human appearance