A Certain Scientific Railgun Vol 4

Throughout Academy City, the rumors are spreading like wildfire. People are finding mysterious envelopes containing free cash cards in and around the back alleys of the Seventh School District. Whipped up into a frenzy, the populace looks for as many cash cards as they can get their hands on, even if it means braving the perilous Skill-Out Territory, risking injury or worse by roving gangs of Level 0 thugs. Judgement is left with no choice but to step in... While Shirai and Uiharu try to crack the case and figure out who is behind the cash card chaos, Misaka decides to take to the streets herself... and soon gets embroiled in a disturbing scientific conspiracy the likes of which will rock her world to the core.

A champion doesn't have to play nice to be on the side of good. Scavenger, a group of girls from the Dark Side of Academy City, have run Kato and Estelle ragged. But the strongest and most unsavory ESPer that Academy City has ever produced shows up just in the nick of time! It's villain vs. villain, in this story of an anti-hero who is Academy City's last hope!

Despite Misaka's tireless efforts and her explosive confrontation with ITEM at Academy City's Pathology Analysis Laboratory, progress on the "Sisters" cloning project hasn't missed a beat. Something big is behind the Sisters, and the deeper Misaka digs, the less she understands. Out of options, Misaka finally resorts to a deadly gambit against the project's crowing achievement: the Accelerator himself. In her darkest moment, an unlikely hero emerges who may turn out to be Misaka's only salvation.

'"In Academy City, trouble is afoot at the prestigious all-girls' school Tokiwadai. Hokaze Junko is being stalked by a ghostly girl who needs Junko''s help to find out who--or what--she is, since she has no memory of her own identity. Unfortunately, Junko's investigation into this lost spirit has to take a back seat when her beloved Shokuhou Misaki falls into enemy hands! Is Junko strong enough with her Rampage Dress psychic ability to save her queen? "'

After taking out the ringleaders in the plot against the Shokuhou clique, Hokaze thought she might finally have a moment's peace...until Sogita Gunha appeared and challenged her to a fight. The difference in their strength is so stark, it's all Hokaze can do to defend against his attacks! Elsewhere, Mitsuari Ayu, the true mastermind, steadily advances her own plans. Full of hope and heart, this side story of A Certain Scientific Railgun comes to a close!

"First published in Japan in 2015 by Kadokawa Corporation, Tokyo"--Colophon.

'" Welcome to a world where mysticism and science collide, and supernatural powers are derived from either science or religion. At the heart of this world is Academy City, an advanced metropolis whose population is comprised mostly of students. The majority of students are enrolled in the city''s “Power Curriculum Program,” where they must learn to master their latent psychic powers. Out of several million students, only seven are deemed powerful enough to have Level 5 status. Meet Mikoto Misaka, the third most powerful Level 5 esper in Academy City. Together with her best friend Kuroko Shirai and the other members of Judgment, a student-run law enforcement agency, Mikoto delves deep into the dark heart of the scientific sprawl she calls home, and uncovers secrets she wishes she hadn''t! "'

'" The Daihasei Festival may be all fun and games (and explosions), but the chaos of the competition also serves as a distraction. A dank conspiracy lurks behind the event, and it ensnares one of Misaka''s “sisters.” When Misaka tries to investigate, the enemy proves to be more complicated–and ruthless–than she first guesed. Judgment is cripped. Misaka''s back may be up against a wall, but some of her other friends prove to be powerhouses in their own right. "'