Or do jobs.. DN will drop when completing certain jobs. Also ata will give DN for certain occasions or completion of certain hunts. Easiest way is to buy them
Like they said to get a higher kcs upgrade by adding more people to your dorm… start off with 6 computer hackers and 6 juiced up jocks all to level 4… that will get you to 5kcs I also suggest you read through the strategy and guide sections in forums it will help you understand the game more and what to do next