After a deadly mist has wiped out most of humanity, a mysterious organisation is trying to save what's left of humankind.。爱情是什么，怎样去诠释？这是一个千古难题。南京师范大学郦波教授，陪同我们一起与时间逆行，开始这场千古经典爱情的浪漫之旅，敬请关注《千古爱情》。。