Fariel's mission is to blend in with the savages and secretly protect an artificial intelligence research base on the island. Angela accidentally arrived on the island due to a shipwreck, and the two met. Because Angela was doubtful about the identity of the savages on the island and Fariel, she did not leave immediately, but started an adventure story on the island.
Because the timeline is a bit confusing when referring to the reference material, Valkyrie is still in the stage of debugging and not being officially used. Watching should be at a point in time before it was disbanded.
Conception: