Under the stars: Alien battlefield Era

Mankind has never stopped exploring the future stars and the mysterious universe this will be realized in the future future human beings will be able to shuttle, explore and communicate among various galaxies in the universe discover new elements, languages, knowledge, and species however, when humans arrived on Goth, they accidentally activated the sleeping Galaxy overlord facing the ability of Galaxy overlord "star phagocytosis", which makes mankind almost perish the remaining human beings live in Penglai Island, a mobile city in the sea this has become the last refuge of mankind.