'If my lord wanted a base, there is no better place. Rebellions are all over the Three Kingdoms. Months before we enter there is a great battle in Dorsea, one the region of Iathus. In Luxermbough many rebellions are starting. If my lord flies the banner of rebellion like the other, with my lord strength and prowess in battle, people would flock to my lord.'
Ragar has one acquaintance in the Three Kingdoms who serves some high ranking noble in Balhae.
Considering that the person he knows is unsatisfied with his master, Ragar promises that he will gain his freedom when he arrives if he supplied him with information, maps, general situation in the three kingdoms and many more.
Lo and behold.
After sending a yellow bird to send the message, the man began sending him information what is happening on the Three Kingdoms.
Arial also knows of this and approve of Ragar decision. He needed a way in if he wanted to rule all of the Shadowlands.