On a certain planet, there are 7 huge cities. There is basically no communication between these cities. In fact, they are no different from independent countries. Humans live in these 7 cities. The most distinctive one is the coastal city "pseudo" where the protagonist lives. The crime rate in the southern part of the city is high. For this reason, the city of Yudo has established the "Urban Security Administration" to take measures to prevent possible crimes. The young man Daisuke is an agent of the Security Administration. His partner r-jaja000106 is a huge robot uncle. The two of them work together in a metropolis full of material desires, blood, and deception to deal with the increasingly rampant criminal activities, until one day...