Ruin and Solar are childhood best friends(Ruin is a demon, Solar is a hunter) who are on the run from a hunter group, since they broke the rules of a hunter liking a demon. since the start of the demon versus human war and trying to not get killed by demon hunters. Ruin is a rude demon which likes to fight while Solar is one who tries not to care. 

One day the demon and the hunter are hiding from the demon hunters and demons in a village after having been scared out of their hiding…