After suddenly being attacked by a mysterious organization, university student Nagisa Kujo wakes up in an unknown laboratory.

She hears the voice of a woman named Mitsuki inside her head who tells her that she’s been captured and must escape.

When Nagisa presses the button on her belt, she finds herself instantly clad in combat gear.

With her newfound psychokinetic power, Nagisa fights to stop the evil assassination organization, Shalldark!