Ordinary People Traveling Through Time

The protagonist is an ordinary person. One day, he was invited to work at the Ministry of Defense of Time and Space as a non-staff member. As an ordinary person, under the arrangement of his superiors, he needs to carry out his own tasks in multiple worlds in order to earn wages. Experience the ups and downs of the world, the feeling of life. The protagonist will go to many worlds, such as the martial arts world, fantasy world, science fiction world, real world, apocalyptic world, etc., To make friends with him, become his enemy, or become a passerby to make up for his regrets, or will he just watch things happen and be powerless? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.