The game should automatically recognize the new content upon the next launch.

Since the file uses the .7z extension, you will need a specialized tool like or WinRAR to extract it.

The file typically refers to a compressed archive containing downloadable content (DLC) for the video game Mirror , a popular match-3 puzzle game with visual novel elements. Contents of the Mirror DLC Archive

In some versions, you must complete the base game's initial character stories before the DLC characters become playable. How to Use 7-Zip to Compress Files and Extract Files

Contains 48 high-resolution CGs that were not included in the base game (4 extra for each girl).

Depending on where the file was sourced, it generally includes the following official expansions:

Often bundled in complete collections, adding further character-specific content. How to Use This File