Altina the Sword Princess: Volume 7

Under the command of Admiral Proxy Regis, the port town of Ciennbourg is liberated from High Britannian control. But while the enemy sea routes are now successfully severed, a supply unit armed with the latest guns and cannons is already headed toward the capital. Meanwhile, Second Prince Latrielle must hold his own against the schemes of adept strategist Oswald. As the last line of defense between Verseilles and the invading forces, a tremendous weight rests on his shoulders. The enemy supply unit cannot be allowed to reach its destination, but the man guarding it is a fearless veteran known as the Mercenary King. Will the war finally come to a close, or is something even worse on the horizon? Here is the seventh volume of a tale of war, love, and politics, woven by the bookworm and the sword princess.

[From J-Novel Club]