Hides your presence from weak enemies. Also known as Concealing Medicine / Hide from beasts. Tips about the blueprint can be obtained from Shukowa. He is at Vedan: Myna / Near the Item Shop Corbis. Head east towards the bridge to find him under it. Once manufactured this item will be on sale at Shilhawa and Techiton shops. The earliest time you can develop this item is by chapter 6.