In a world where beast taming reigns supreme, Ye Mo is a poor but gifted young man. During the awakening ceremony, he is humiliated by the campus beauty, Jiang Zhiyi, and forced to use a purple eggplant as a summoning medium. Unexpectedly, he summons Shen Muqing, Jiang Zhiyi's own mother and a seductive succubus, while awakening an Infinite Contract Upgrade System. He tricks Jiang Zhiyi and others into luring monsters so he can farm experience and level up. With his succubus's overwhelming power, he crushes the competition at the national tournament. He then investigates the truth behind his parents' murder, exposes spies from Japan, contracts the Bone Emperor, eliminates his enemies, and pacifies the Abyss. Finally, he fuses two SSS-rank powers to ascend to the divine realm, seals the Abyssal Overlord, and saves Earth. Yet he turns down the position of Council Chairman and returns to his manor to enjoy a carefree life.