Aya Kirishima is the main female lead of Prison Lab. She's an honor student who bullies Eyama Aito—despite the two having been friends back in middle school. Whatever went down between them was enough to flip the script entirely, turning Aya into someone who actively torments Eyama. That decision comes back to haunt her when she ends up becoming Eyama's captive in the Captivity Game, flipping the power dynamic completely.
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