"There are seven elements, a good and evil one of each, and you, my dear, have the evil electricity element," the strange man that Emma meets at an abandoned casino says. After her mother kidnapped her brother and her father was killed by an intruder claiming to be a "super villain" called Poison Assassin, sixteen-year-old Emma Kimasaki figures out exactly what she wants to use her element for, revenge on Poison Assassin. That's when she meets the new laughing stock at her high school, Tony Fujuki, who she isn't aware is also her accomplice, Fieri, a boy who has the evil fire element. He eventually snaps and now all of Tokyo is on fire. Now, another one of Emma's goals is to rescue him from his own insanity. But things only get more chaotic from there. Does she love Tony? How will she keep his identity safe after he revealed it to the whole school? And what will become of her other goal of destroying Poison Assassin?