Un monde parallèle créé par l'IA connue sous le nom d'Iris. C'est dans ce monde que Sayaka Hiwatari se réveille, dans un endroit appelé la Zone de confinement. Elle y rencontrera de nombreux visages familiers, mais ceux qui étaient ses amis dans un autre monde pourraient bien être ses ennemis ici...
      Z is Only the Beginning
      
      
      Conquer all Strain Areas on EXPERT
      Unlock all Death Ends.
      Reach the Good Ending
      Defeat Glitch Celica
      Defeat Glitch Al
      Defeat Glitch Clea
      Defeat Glitch Lucil
      Defeat Glitch Lily
      Kill 1,000 Enemies
      Clear 1,000 Dungeon Floors.
      Achieve S rank in all Strain Area Results
      Sayaka's battle as a human ends here!
      Advance the story and rescue a VIP (9th time)
      Advance the story and rescue a VIP (8th time)
      Advance the story and rescue a VIP (7th time)
      I lost myself...
      Advance the story and rescue a VIP (6th time)
      Advance the story and rescue a VIP (5th time)
      Advance the story and rescue a VIP (4th time)
      Advance the story and rescue a VIP (3rd time)
      Advance the story and rescue a VIP (2nd time)
      Advance the story and rescue a VIP (1st time)
      Sayaka's story begins...
      Collect all weapons and update each to max
      Collect all weapons and max out proficiency and specs
      Transform into Vanquish Form multiple times.
      Gather a huge amount of Eni
      Reach a Death End after Chapter 1 starts
      Transform into Vanquish Form.
      Unlock all Death End skills