1. An asset managing apparatus, comprising: a recording unit configured to include a first database for recording a plurality of assets by relating each of the plurality of assets made to correspond to each of a plurality of users to a first layer that is a layer related to a virtual system individually used by each of the plurality of users, or to a second layer that is a layer related to hardware and software, which realize each virtual system, and a second database for recording information indicating a relationship among the plurality of assets; a search extent setting unit configured to identify a layer made to correspond to the first layer by referencing the first database, and to set an extent for extracting information about another asset having a relationship with the first asset according to a layer of a first asset, when the first asset among the assets is specified; and an extracting unit configured to extract an information technology asset having a relationship with the first asset included in the extent set by the search extent setting unit by referencing the first database and the second database based on the first asset.