Arslan Senki

Arslan Senki is a novel series created by Yoshiki Tanaka, with a manga adaptation by Chisato Nakamura, running from November 1991 to September 1996 on Asuka Fantasy DX, and a second one by Hiromu Arakawa, that has been serialized in Kodansha's Bessatsu Shōnen Magazine since July 9, 2013. This adaptation is currently available for online-exclusive purchase at Crunchyroll., while Kodansha Comics USA is physically publishing the manga in North America.

Plot
As an unnaturally heavy mist descends on the battlefield, King Andragoras and his most valued officers confer among the bodies of dead and dying soldiers. When Daryun, a young but highly skilled officer, voices his reluctance to send men into battle under these conditions, the king, unstable and enraged, banishes him. Now, Daryun's new mission is to ensure the safety of the King's only son, Prince Arslan. Daryun and Prince Arslan set off on a quest of their own, but they can't succeed alone. They must convince both the Lord Narsus and his companion, the archer Elam, to join them in their quest to somehow help the soldiers win the war. They are then joined by the beautiful Falangies and the wandering musician Gieve.

Now a group of only six they must somehow overcome an enemy of 300,000 soldiers! These unlikely soldiers have fate on their side, so anything can happen!