This is the Ruby Price─a Hingan bastion erected by the bakufu in the middle of the Ruby Sea.
Whenever an enemy ship draws too near, we fire upon them until nothing but burning planks remain.
We must take extra precautions when doing so, however, as we are stationed very close to the trading port of Kugane. We do not want to mistakenly open fire on a commercial or otherwise friendly vessel.
Such an error would be akin to waging war upon what may have been an allied or neutral nation.