A Summoner In Apocalypse

One day, mayhem descended on earth as dimensional gates transporting monsters appeared all over the worlds and along with them crystals that brought unknown powers. Cities fell with millions of deaths all over the world. Those who survived would try to survive in their own way. Some would try to continue society and build back. Others would try to build their own utopia. But this was only the beginning as new civilizations came on the new battlefield. Hao Kennen was in vacation in the Bahamas with his friends when hell came down upon them but power was also given. Kennen received the power of summoning creatures. Vacation ruined, danger at every corner and the power of summons, Kennen and his friend will have to navigate through the dangerous situations in order to survive in this new apocalyptic world.