After finishing this.. All I could say is it ended with everybody accepting their fate with the characters accepting the consequences of their actions. So you could say it's all done and wrapped. I suppose at the very end of the anime, kagari watched as a "lifeline" I suppose disappear so that concludes the human race and its extinction. BUT WHY IS THERE A SECOND SEASON OF THIS? shouldn't it have ended already? It seem like the perfect ending to wrap up the story Ok Just watched the second season and my theory was proven to be invalid..well half of it was anyway.