A Certain Magical Index, Vol. 8 (light novel)

Tokiwadai Middle School—a place bathed in the envious gazes of all the schoolgirls in Academy City. Every single one of its female students is a proper young lady, and none more so than Mikoto Misaka. Kuroko—a Level Four teleporter and a member of Judgment, the organization that preserves public order in the city—knows this all too well. She invites her darling Misaka out to go shopping, but that's just the beginning of what ends up being a very, very long day, one in which she sees Misaka's true form and may wish she hadn't...