An unprecedented animal mutation event suddenly erupts in the city, where once gentle animals undergo a drastic transformation, becoming massive, towering monsters. Their bodies swell to several times their normal size, even surpassing the towering buildings in the city, showcasing a stunning new form. What is even more unsettling is that these monsters seem to have gained a certain level of intelligence. They are no longer content with being confined by humans but have begun to launch a counterattack against humanity. You tightly grip the weapon in your hand, which is your only reliance in fighting the monsters and protecting your home. In this crisis-ridden environment, you must remain vigilant at all times, evade the pursuit of the monsters, and seek out like-minded partners to plan a counterattack strategy together. This is a confrontation that concerns the fate of humanity, and you are the crucial element that will determine the outcome.