The Game Ends With the Machines Turning Evil Again

In the first game, humanity exists in a primitive state. They believe in these goddesses and have no knowledge of the past. So you play as an alloy that needs to save the world because these machines, they turn evil again. The second game starts with you chasing after silence, wanting to understand why hades still exist. And most of all, you're searching for a back up of gaya - which is also revealed in the first game.