Trivia / Iris Zero

• Bonus Material: In the volume collections; usually composed of a short side story and a Fourth Wall-breaking comic full of the characters mocking the writer, artist, and the series in general.
• Schedule Slip: The manga went on a lengthy hiatus from 2012 to 2013 after artist Hotaru Takana fell ill. Since then, it's gone in and out of hiatus depending on Takana's health.
• What Could Have Been: Iris Zero went through a few different forms during planning, mostly outlined in Bonus Material:
  • Toru was originally supposed to have been the only one with an Iris, surrounded by normal people—one old idea was someone who could see the Red String of Fate connecting others but could not fall in love himself—until the creator decided he had no distinguishing features other than his power and switched it around.
  • The original series was supposed to have been a set of one-shots with a different protagonist every chapter, collected into a single volume. (Toru, Koyuki, Asahi, Hijiri, and Harumi in that order.) The publisher decided they liked the idea enough to request serialization instead of a limited run.