I like this post. So this game is part of a series?
Yes. First Nier game is kinda a sequel to a joke ending to the first Drakengard IIRC or was it the second or something. Its weird. Clemps is entertaining so even if it will take a long to to watch them all they made me enjoy Automata more.
With that said you can get the main story without knowing anything from the other games.