Ten years ago, He Ze would not have thought that the moment he learned to time travel in a barbecue restaurant, he would have embarked on a path of no return; ten years later, the "cousin" used for time travel opened the door to the parallel world. However, no matter what dangers he encountered, the time travel mentor "Mr. Pocket Watch" never appeared. The only clues were a glass cleaner called "Ruchu Brand", the coins he carried with him, and an old enemy that he could not get rid of - Sun Bowen.
After traveling through time several times, he and Sun Bowen were both friends and enemies, and the truth behind Sun Bowen's murder gradually emerged...
