Humans are raised as livestock that provide blood. The treatment of humans is very poor. Food is provided by vampires with junk food such as leftovers. Safety is not guaranteed. Vampires can kill humans anytime and anywhere. Ancestor-level vampires can massacre humans. The world is ruled by vampires, but there is an alternative among the vampires who actually adopts humans. The PS story is somewhat different from the original work. Krulru does not know the plan of the Seraph of the End and his brother's affairs. Mahiru has not become a ghost. The cursed weapon has not been invented in this world.
Quite pretty