In the foggy environment, surrounded by three fog monsters, humanity has only one core left. His first contracted beast turned out to be a useless spirit, but it unexpectedly opened the door to the union of human and spirit. When his body was no match for the contracted beast, he became the final variable in this central battle. (This article uses the perspective of the protagonist to explore the world of pet beasts that I conceived during my senior year of high school. I hope everyone will gradually integrate into this fascinating world)
