There Are No Animals in the Zoo, the Special Department Captures the Livestock

There are no animals in the zoo, and special departments specialize in catching social livestock. The girl who had been dead for two years returned to human society to survive. The bloody thorns bloomed with withered flowers. In a world where no one can save "me", "I" can only save myself. Everyone has human skin, and everyone has only one skin. Please don't wear other people's skin, otherwise the owner will come looking for you. Don't make promises to gods easily unless you are prepared to be entangled with them for three lifetimes. (Only three cases for now, I will add more when I think of it, the plot flow is slow, so proceed with caution)