To provide a system for retrieving one of introduction housing information, management housing information or commodity information, on the basis of the commodity function information selected from a user's terminal device, and acquiring the home page address of a company providing the commodity of the commodity information by limiting the user, when retrieving management housing information and detailed explanatory information.

Dwelling livelihood information relating to safety and relief at multiple dwelling houses is managed by means of a database. The dwelling life information comprises commodity function information, introduction housing information, management housing information and commodity information. There is provided a retrieval means for retrieving either one of the introduction housing information, management housing information or commodity information, on the basis of the commodity function information selected from the user's terminal device.