Metal Max 4: Moonlight Diva

The story took place 50 years after the destruction of human civilizations by mad supercomputer Noah. The protagonist (default name "Hinata") is a young boy who is living peacefully with his foster sister Sasha and foster father Gib in desert islands. One day, a group of mysterious army attacked their island. The protagonist and Sasha escaped but Gib get abducted.

Sasha tells the protagonist that Gib and him were "Hot Seeds". The project of sealing human survivors in hibernation chambers since ...