As an unofficial v0.1 build, this game is unfinished. Expect bugs, placeholder assets, and limited content. You will need to sideload the APK (Allow installation from unknown sources).
Be careful. Because this is a niche APK, scan the file with VirusTotal before installation. Always read comments on the download page to ensure you aren't downloading a reskin of a malware app. RWBY Rise Of The White Fang -v0.1- -APK-