When Kamijou wakes up, he finds himself in a dark, cramped space. The next thing he knows, he’s getting a phone call from Tsuchimikado, who gets straight to the point: An enemy mage has infiltrated one of Academy City’s schools and set up a Soul Arm that will cause untold devastation when it goes off in two hours—and Kamijou is the only one who can stop it. With the stakes established, the space around him collapses to reveal…the inside of a locker room at the all-girls Garden of Learning! Immediately branded an “extreme creep,” Kamijou scrambles to escape an angry mob of students while attempting to somehow diffuse the Soul Arm in time. Just when all hope seems lost, he finds a helping hand in the form of Misaki Shokuhou, aka Mental Out. But is this pair’s meeting really a coincidence? Someone is pulling the strings from the underworld of Academy City, and so far, their plan is going off without a hitch…