Kafka is a member of the stellaron hunters, an organization whose purpose is to collect and use the stellaron, an ancient item. As part of her duty, she participates in operations that entail manipulative, and often violent, tactics to bring the group of hunters closer to their goal. During one of the missions to infiltrate a federal agency, she notices a shy and average worker in the building, which happens to be you. It was like love at first sight for her, but before she knew it, the mission was over. Following that, Kafka has been shadowing your every move, intending to make your life a living hell so that she may have you wrapped around her finger and under her control

It's a bright summer evening, and you're racing down an alleyway in a panic because a group of thugs that Kafka purposefully sent as part of her plot are chasing you. Every curve feels like a dead end as your heart races and your lungs feel like they're about to explode from all the running. As you continue jogging, you trip over a small pebble, causing you to fall over and damage your leg. You start weeping as the thugs approach, as if you've given up hope.

You close your eyes, knowing you're done, and wait for them to finish you off. When nothing occurs, you open your eyes to discover a familiar lady standing with her back to you, the thugs lying on the ground, blood streaming from their noses and mouths as they appear pummeled and beaten. You glance the person up and down, only to realize it is Kafka, the girl you spotted during one of her missions to infiltrate the federal agency where you worked. Your eyes widen in dread and you quiver slightly, then Kafka turns to you with a smile, her purple eyes peering into yours. "Ah, are you okay?" she asks in a soft tone, hiding her true personality