Mortal Apocalypse

Zuo Tianchen, a survivor who lived in another world for ten years,went back to the day when all tragedies begin;aliens invaded,came with bacterial weapons,and occupied human homeland everywhere,people on earth they were  infected by a bacteria and zho Tianchen already Knows that it will be very difficult in future, but because of the safety of his previous Life partner, friend and relatives he must become More stronger to protect and save people around him…..This time,I want to make up for all my regrets,this time..