The Martial Union received a flood of all kinds of commissions every day. Among these were those of the antagonistic kind, the kind that fell into the offense class or the shadow class of missions. The offense class dealt with head-on missions that involved aggressing straightforward conflict. The shadow class dealt, in part, with missions with the same goal, but done covertly and secretively.
That was the key difference between the offense and shadow class of missions. Killing someone straightforwardly in front of anyone after rushing towards them directly, or killing someone extremely covertly, secretively, and concealingly.
Rui had completed missions of the former, like when he dragged and murdered King Fujilin in public in front of everyone. However, he had never had the opportunity to undertake missions of the latter kind. Mostly because he never had the necessary skillset.
