Materials are the resource types of Shirohime. They are gathered periodically.at an hourly rate every 3 minutes or so. The amount of each type of materials can influence the Castles and Facilities that are constructed. Materials can be found from Dispatches, Engagements, Duties and Domestic Affairs. There are four types of materials in Shirohime: Wood (木), Stone (石), Rice (米), and Soldiers (兵).