A mysterious natural phenomenon caused the Earth to be plunged into darkness. The world turned into endless bloody chaos and mankind is on the brink of extinction… Chu Yun Sheng, an ordinary white-collar worker, discovered his family heirloom, a book, shining a bizarre light by accident. Out of curiosity, he tried to study the book. After long research, he still only understood a few symbols written in the ancient book. However, he was shocked when he figured out what messages the ancient book tried to tell him: the sun will disappear, and humanity is doomed… He tried to spread the message, but no one believed him; his family and friends even tried to take him to see the psychiatrist. Eventually, he gave up telling anyone but prepared for the apocalypse in secret. Until one day — the sun really disappeared…