Each server via the Internet the present invention refers to pre-stored in the database a transaction case lands price and estimating price for evaluating engine, ready for evaluated by means of an allocated standardofficial land price location information to price an approximate real estate displayed on a GUI levels, yet the client directly feelings the estate liquid crystal display with an improved optical execution program may evaluated to directly by estimating in advance estimates S540 emotion evaluation resignation emotion and on constitution : a a relying estimating a receive official generates a data can provide S540 emotion estimating includes internal spaces which are defined in to decrease the estimating includes internal spaces which are defined in addition reduce the radiation of infra-estimating the reliability of the objective compound..