PROBLEM TO BE SOLVED : To provide a method, a device and a system for properly examining received manuscript information.SOLUTION : The device 10 for examining received manuscript information examines received manuscript information showing the location, price and data of a real estate to be introduced comprises a storage part 16 in which geographic pricing showing prices associated with areas is stored; a market price acquisition part 12 for determining the area corresponding to the location of the real estate according to the geographic pricing held by the storage part 16 and for determining a market price based on the price corresponding to the area; and a divergence value calculation part 13 for calculating a divergence value that shows the divergence between the market price and the price of the real estate.