Megarette, the alter-ego of Anna ¿ the exuberant young woman crash-landed on Earth ¿ engages in an uneven fight with a therianthropic giant. The giant bears the mark of a human species thought to have gone extinct thousands of years ago: the Neanderthals! But who are the Neanderthals? Why does the name spur an incontrollable instinct of hate and violence in Anna? The city-island is under attack, and Megarette's divine force is not enough to fight the multitude of enraged beasts. Special new characters will come to her rescue, while dramatic memories will start resurfacing in Anna's mind.