Download "VRTV" or "ManoMotion VR Player" from the Google Play Store. These apps convert 2D content into 3D SBS (side-by-side) mode.
Avoid sketchy "auto-download" websites. Stick to Reddit communities (r/AndroidVR) and GitHub repositories for the modded APK. Always scan with VirusTotal before installing.
The fan community has ripped the character models from the original PC game and ported them into Unity3D scenes that run on Android. Search for "VR Kanojo Unity Android Build" on legitimate modding forums (not APK download sites).