A certain scientific railgun / Kamachi, Kazuma

"Kuriba Ryoko's Doppelg??nger-the by product of a cyborg experiment that may have generated a human soul-has run amok, and Misaka may be the only one who can stop it. Misaka's unlikely team-up with the girls of Scavenger could be the key to uncovering the truth inside the Doppelg??nger. The explosive conclusion to the Dream Ranker Arc!"--Back cover.

Mikoto Misaka, one of seven Level 5 students in a city where most of the population have latent psychic powers, leads a student-run law enforcement agency and uncovers secrets she wishes she had not.