I Destroyed the World with My Own Hands

From one day onwards, time for all mankind begins to flow backwards. The dead are resurrected, the loved ones are forgotten, and civilization retreats from nuclear fusion to making fire by drilling wood. There is only one person in the world who is still moving forward. His name is Song Shiyan. He watched helplessly as his daughter forgot about him day by day, and his wife said "I love you" to him in reverse language - that was the last time she said these three words. And the initiator of all this is himself.