Nikola is just a village girl working at the inn...until the day dragons invade, and she meets Haga, a scholar of everything around him. He's a part of an elite society called "Seeker," created to address a series of maladies plaguing their usually peaceful world. But both Nikola and Haga have secrets they hide...ones that will change each other's very existence...

An unexplored dungeon, filled with monsters and traps. An expert thief, searching for her lost father. When Clay delves into the dungeon deeper than any adventurer has ever gone, she is offered a job by the dungeon's caretaker! Now, instead of exploring, Clay must learn how to interview new monsters, set traps and position slimes around the dungeon. Will this new career path bring her any closer to finding her father?

Duke Fleed is a survivor of the Fleed Planet who is escaped to the Earth, onboard a mysterious "spaceship", where is raised by Dr. Umon as his adoptive son, and known as Daisuke Umon. Years after his arrival, he's faced with the threat of King Vega and his army, who want to conquer the Earth. With his friends Koji and Hikaru (and later his younger sister Maria Grace), Duke decides to fight back using his best weapon - the almighty Grendizer.

The second season of NieR:Automata Ver1.1a. The year 11954. YoRHa Soldiers 2B and 9S are newly dispatched to Earth to carry out and support the 243rd Descent Operation. There, they succeed in destroying the machine lifeform core units, Adam and Eve. With the annihilation of these enemies, the Army of Humanity takes this chance to end this long-lasting war and decides on an all-out attack against the machine lifeforms. This is a record of the battles and hopes of Androids and the fate which dictates them all… As war rages on, Unit 2B and others like her question their role. Reclaiming the planet will take sacrifice, but how much more can they give and is humanity worth the cost?