Solve unsolved cases and stop the rebellion in an endless cycle. Navy Xiaoqi Jiang Che landed on the island as an external investigator, but found himself trapped on the day when the rebellion broke out. Each time he died, he would wake up on the dock in the early morning. He must go through countless cycles to find out the real culprit and source of the rebellion from the many characters with their own evil intentions, and break this fatal fate.