Corpse Party Edit
Chapter 5 Edit
While the hairpin itself does not appear as a physical item, its design may have influenced the "pentagrams" that are scattered on the ground that the player can step on and switch to another party of characters (Ex: If you step on it while playing as Satoshi, Naomi, and Yuka you switch to Yoshiki and Ayumi) as they look nearly identical.
Corpse Party: Blood Drive Edit
CHAPTER 9 『 Imperator 』 Edit
Magari Mizuki appears to give Ayumi Shinozaki and Aiko Niwa the Book of Shadows but not before antagonizing her. She gives the hairpin to an overjoyed Aiko, who tries to listen to the item. She then collapses to her knees and sobs uncontrollably.
- Aiko does try to make contact with Naho right away once she get the hairpin but the game makes it unclear if she actually succeeded or not. The only clue we get is in the description.