21xiang shaolong (louis koo), a member of the century special forces, decided to participate in the study of traveling through time and space in order to win back his love eee。 however, due to the error in the data of the time machine, shaolong was brought to the warring states period. at that time, ying zheng (played by lin feng) had not ascended the throne and was imprisoned in zhao state. in order to return to the future, shaolong did everything to help ying zheng ascend the throne successfully. because shaolong's extraordinary wit and special identity, his abilities were appreciated by everyone, so he was also conspired by cunning people from many parties. when he was attacked from both sides, shaolong, who was romantic by nature, also got entangled in a complicated love relationship. can shaolong help ying zheng win the world? how would he deal with his relationship with his lover in another world?