Pet: Get the Promotional Supermarket System at the Beginning

In the world of monsters and beasts, people contract with monsters to become stronger. At the first level, one can contract with one monster. The first level of monster transformation can be used as beast pet equipment. The second-level monster breeds a pet skill. The bloodline evolution of the third-level monster race. ... Liu Yan travels through to obtain a promotional supermarket system, with new unlimited free materials provided every week. Others are still contracting bronze-level, silver-level, and gold-level monsters. He has set his sights on the most expensive special monster! "Ten battle sparrows, nine trenches, and one is a divine trench!" His special monster war bird has survived the catastrophe of monsters and successfully given birth to a divine object! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.