The Legend of Soul Contractor

Others have a bunch of soul contracts and soul pets, but I don't have one. I only have one soul pet, and it is the lowest slave-level wolf soul pet. But my soul pet is different from other people's soul pets. In theory, my soul pet can infinitely increase the racial level... This article is a fanfic of "Chong Mei", but it only borrows the world system of "Chong Mei" and will not have much connection with the plot of "Chong Mei".