HADES VANQUISH is available in DLsite.com at 880 JPyen.
Before buying this, please play the trial version to verify that it works.

System Requirements

OSWindows Vista SP2 or greater
CPUCore2Duo or greater
Memory128MB or greater
HDD100MB or greater
Display800x600 pixel / True Color or greater
Control DeviceKeyboard or Gamepad
DirectX8.1 or greater