The true creator of Alice Code, the game engine beloved by developers worldwide. While she officially works as an auditor at Aggle Corp., she's also developed various other general-purpose engines. The staff at Aggle don't seem too fond of her.

When she learned that Arata Mizunashi and Shina Ninomiya had transferred to Iris Corp.—and that many others wanted to leave Enigma too—she helped them leave and find their feet. Because of that, she's not just disliked, but downright resented by those at Enigma. Her part in creating the Alice Code doesn't matter to them. As for Alice herself, she brushes it off, saying she only did what was best for Iris Corp., and by extension, Aggle Corp. Nowadays, she mostly lives off day trading. Not that she needed to; she was already wealthy enough to live comfortably for the rest of her life.

She might seem like someone with a strong sense of duty, but really, she just does whatever sounds interesting. Her greatest obsession is observing death in living beings (because of the variety, she says). It's an absolutely deranged fetish.

She seems like someone who might host a death game, huh... In reality, she's found a different, bizarre way to satisfy that urge, one too outlandish to explain here. Sayaka will end up relying on her many times... Good luck with that!