Question: is nier in nier automata?
Answer: NieR is a spin off series, not just the main character of the western release of the game which was NieR Replicant, NieR Gestalt in Japan. ... Because it is a sequel to Nier. Even though set ~10000 years in the future it is still taking place in the same world - with Nier's story being the foundation of its present state.