"Fu Xingyuan" is the ace executor of the Space-Time Management Bureau. His mission is to travel through various worlds to rescue male protagonists who are unable to fall in love or who have unfortunately given up on themselves in life, and to have a happy life with the male protagonist in that world.
(The name "Fu Xingyuan" is the execution code name of all the ace executors of the Space-Time Administration. The 'Fu Xingyuan' in each world is not the same person. The three tear moles are equivalent to a symbol of their status.)
