Two long-time friends, one cosplayed by Ogai Mori and the other cosplayed by Ango Sakaguchi, traveled through time.
Mori's cosplay time travels relatively early, the timeline is just after he landed on Chang'an Island, Ango's cosplay was just kicked out of the police school (after all, it is a police school where people can't stand the rigidity), and he came out to find his friends. At this time, Mori's cosplayer has successfully become the leader of the port, so Ango's cosplayer was abducted by his friend to the port to work as the leader's exclusive intelligence agent.
Then there is the daily routine of being misunderstood because the two of them are so familiar, they often do some "straight man tricks".
Intention: Work hard to create a better future