Namkook AU
Joon replaces his main bodyguard quickly after attempts on his life occurs. Cue JK, military trained pro who also acts like a total brat. But one day Joon is hurt severely bad and JK is able to barely wound the assassin before he gets away. Feeling change then. https://twitter.com/__namkook/status/1250420383657775108

Background
Joon is a scientist, working on the latest developed medical drugs in his own company and control. Many don't like this and have seeked to buy his drugs or his time. He has declined and gives working medicine for free on the market, earning him several enemies.

JK is military trained and has training in several different martial arts fighting styles. He has worked in over seas cases but left military duty after an incident. Now he takes on small jobs to pay for basic things and takes dangerous jobs for when he buys the Switch and AC:NH.

I decided to write out a whole story line blueprint for this and will put the chapters on AO3 and on this thread for anyone who falls upon this!
https://archiveofourown.org/works/23833624 
#Namkook #Namkookau