Though Kanon Kanase is recovering from her ordeal, her father's research has dangerous implications for the Fourth Primogenitor, and Kojou's hopes of returning to a normal life are premature. The alchemist Amatsuka is after the Wiseman's Blood, a powerful liquid-metal life-form, and he will spare no one in pursuit of his goal. Kojou would never back down from a fight to protect his city and his friends, but this time he will receive help from an unexpected ally...