The pharmacist Fu Guang, who refined the Resurrection Pill and was struck by heavenly lightning into interstellar space, became a frail girl. Upon opening her eyes one morning, she was immediately pulled for a Guide rank assessment. Rank D, her mental power severely damaged, her chances of promotion slim.

In an era of frequent wars, for the sake of human continuity, everyone—whether Sentinel or Guide—is a consumable commodity; a Guide unable to cleanse Sentinel contamination is a worthless piece of junk. As everyone knows, junk has no value. Thus the White Tower issued an order, demanding she join the Alliance University to soothe the Sentinels, who, due to the dwindling number of Guides, are eager to become more violent.

Sentinels, war machines, mad dogs, the synonyms of perversion.