Because it is a QA build, the original developer may have abandoned it. Many versions floating around contain malware.
The inclusion of "" in your text suggests you are looking for a downloadable Android Package Kit (APK) file for this game, possibly for Quality Assurance testing or to install the game outside of an official app store. The Story of a lonely Girl in a Dark Room - QA-APK
The protagonist's loneliness is a defense mechanism, a coping strategy to avoid the pain and anxiety associated with her past experiences. Her isolation serves as a protective shield, preventing her from forming meaningful connections with others. However, this shield also prevents her from experiencing the world around her, leaving her feeling empty, disconnected, and alone. Because it is a QA build, the original