He was just a blind ordinary person who accidentally lost his memory. He accidentally met a guy whose body temperature was not much higher than that of a corpse. He accidentally saved a man who was said to be very powerful. He accidentally broke into a different world. He accidentally lost precious things. He accidentally... So many accidents combined made him at a loss. What were those lost memories hidden? Who was he? Where will he and that person go in the end, and what will be the outcome of all this...