Warning: GEM IS ON ANDROID* If you plan to log in at IOS device, you should need to use ALL GEMS at ANDROID device or EMULATOR first. We won't take any responsibility if all gems disappear with the reason you logged in wrong device.* Please note: Please ensure that you can enter the game normally and then log in to the account, because the account password is one-time, the second login will be invalid, no warranty on this case.