National Beast Control: I Can Synthesize Summons

After waking up, billions of people traveled to a dangerous world and became beast masters. Everyone starts in a wooden house, and can also get a book of summons and their own initial beast. And Fang Ming discovered that he could obtain higher-level things by synthesizing the items he owned, such as beast control. "You synthesized two black iron-level goblins, and you obtained a bronze-level giant goblin." "You synthesized two bronze-level blast wolves, and you got a silver-level blast two-headed wolf." "You synthesized two old wooden boxes, and you obtained a black iron-level treasure box." "You synthesized two low-quality steel knives, and you obtained a high-quality steel knife............." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.