To provide a medium container that can be manufactured at a lower cost while flexibly dealing with various designs without hindering the performance of a medium having predetermined performance. The present invention relates to a sticker. This sticker is characterized by being provided with: a three-dimensional cover part obtained by three-dimensionally shaping a sheet-shaped material； and a base part that supports the three-dimensional cover part. An enclosed substance including microbial carriers that support microbes having antibacterial performance and/or deodorizing performance for the inside of a space where the sticker is installed is housed in a housing section formed inside the three-dimensional cover part, and an adhesive layer is provided on the bottom surface of the base part.
