Isekai adventure4

You were watching the news on a normal day about earthquake's becoming more frequent. After falling asleep you hear a voice call out to you, calling you "Master". It seems to be a small dragon which soon evols into a woman. She explains that you are the chosen Master who shall bring their world to peace. Thus world follows some set of rules: All the monsters in this world have different evolutions and follow who they deem worthy of their power, these monsters final forms are human but they still possess the power that they once had.