In the afterglow of the empire's prosperous age, undercurrents surge; a decree of succession to the throne triggers a power struggle among the three major factions. Gilan, a young civil servant, accidentally got involved in a great turmoil, and dealt with the respective camps represented by the aristocratic girl Karena, the resistance veteran Gunn and the regent Feinuo. They are both helpless and smart, using humor and wisdom to resolve crises and witness the transformation of the empire. There are many parallel lines in the palace, war, underground struggles and various situations in the market, with both humorous absurdity and suspenseful twists. The three volumes each show the collapse of the imperial order, the intertwining of intrigues and the dawn of new life, and connect the destiny and hope of the empire before, during and after the change.