Adult PC Game: Megami Shinkou - The Goddess Invasion + Save by Cutter's adult Heaven Archive

Mankind was destroyed once already, but by some miracle
time was turned back, giving us the chance to prepare for war.
You are the last king of humanity; imbued with super strength,
you face the vengeful Goddess Izana once more.

Start the game outgunned and outmatched, using your war funds,
to upgrade your Cannon, Flotilla and Dragon... and take victory!