Japan has eight million gods, and most of them have been forgotten. A forgotten god starves, goes mad and starts eating towns. Ten years ago, nine-year-old Hayama Itsuki took his little sister’s place and was buried alive as an offering to one of them. Seven days later, he dug himself out. Now he hunts gods to get her back, and every god he puts to rest takes one of his memories and makes the world forget him a little more.