If You Can Swallow a Bizarre Situation Like This So Easily, Two Buckets of Barium Shouldn't Be a Problem

Katsuhira Agata is a quiet and reserved teenage boy whose sense of pain has all but vanished. His friend, Chidori Takashiro, can only faintly remember the days before Katsuhira had undergone this profound change. Now, his muffled and complacent demeanor make K...