Piece of Wonder Cheats - PC
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Unlock Extra Scenario: Alecto's Story
Successfully clear all three character paths (Amane's, Shoko's, and Raki's) to unlock "Alecto's Story." The story-path, which is played from Alecto's perspective, will be available as an option at beginning when starting a new game.
Unlock Memory Mode
Finish a heroine's route to unlock that heroine's memory mode.