Since there is no native APK, you must use an emulator to run the original 3DS game files.
If you are looking to play this specific title on your mobile device, your only viable option is . How to Play Humanity in Chains on Android attack on titan humanity in chains download apk
Finding an official is impossible because the game was never officially released for Android. It was originally a Nintendo 3DS exclusive developed by Spike Chunsoft. Since there is no native APK, you must