Age of the Trapped Beasts: Picking up a Sickly Sister at the Beginning

In 4500 AD, the beast mutated. Human beings no longer dominate the world, but become food. Facing the threat of wild beasts, after a hundred years of hard work, humans invented the protective shield device. This device protects humans within a protective shield and is no longer intruded by wild beasts. But from then on, human beings were also trapped in cages, like trapped animals. At the same time, a group of people are quietly transforming and awakening to their own abilities. With faith beyond ordinary people, they rebuilt this broken world with blood and tears. ———— "Psychiatric Institute? What are you studying?" "We are studied." "?"