According to Giriltia, the Sauro War Depot Researcher must know something important, so he asked you to kill him and obtain usable information. According to Giriltia's instructions, you killed the War Depot Researcher and brought back the Ancient Weapon Blueprint. Canix though that it was an Ancient Weapon Prototype, powered by Idgel. He also said that the notes reveal that the 40th Brigade General Sita found pure Id in the Sauro War Depot and keeps a Shugo Researcher prisoner to research the Id and the Ancient Weapon.