Story
Nikola Tesla――
The genius inventor, whose talent made Thomas Edison jealous, kept note of all his inventions in a crystal.

Botan Negoro, a descendant of ninjas who was raised to be the greatest spy, is called to a mission to recover the crystal 'Shard of Tesla' after a mysterious incident in Norway. There, she finds herself partnered with Kuruma, the self-proclaimed No. 1 spy, who's been expecting her.

The battle of the spies surrounding the 'Shard of Tesla', and the destruction of the world, begins!