A somewhat well-known hacker in Japan's underground circles.
Her parents work in international trade and are often away, so she spent time online to ease the loneliness. That's where she honed her hacking skills.

On the surface, she only runs idol fan pages and a World's Odyssey database site. She even did official PR work for Enigma Corp., so she's essentially a staff member. These days, her obsession seemed to be centered on the actress Chloe Aaron.

How exactly she ends up involved with Sayaka remains to be seen...
But they'll unexpectedly cross paths. One day, she hacks into... Iris Corp.! Will Sayaka be able to fend her off?