- Spy(99)
- Mercenary (Il san)
- Assassin (Ee san)
- Saboteur (Sam san)
Also known as the Koguryo Spy Guild (KSG), or simply "The Guild". The organization was founded by Thomstel.
Members
The current members of the Spy subpath can be found here. The current Elder of the Spy Guild is Phalance. 
Roleplay
The Koguryo Spy Guild of the old days was an unquestionably elite collection of individuals. Their names--Hobart, Chongun, HanSu to name a few--were certain to inspire awe among members of the community, especially rogues. These days, they are often revealed by an X-shaped scar somewhere on their bodies, most frequently the arm, and it would not be wise to boast of having such a scar were it not given to you by the KSG. The Koguryo Spy Guild since its founding has dominated the circles of espionage in the Kingdoms. There have existed at times smaller groups of spies, members of which, if they were good enough at what they did, might have received the scar. If not, they would disappear. The guild has had a few more notable rival organizations in its time; there has been a long-standing tension between the organization and the Koguryo Royal Army. Spies were formerly not allowed to serve in the army, though the BIA and later the Nagnang Army always made use of their talent. Recently, however, it seems the relationship between the two organizations are warming up. The KSG has also had a longstanding rivalry with a group named Black Thorn, which makes an appearance from time to time. Members of the guild are usually disinclined to speak about their work openly; they often work or pretend to work different professions. Some cannot shake their darker nature, while others remain amiable to the last.