Kochouki: Wakaki Nobunaga

Both are about Japan's historical incidents, they follow a character and their struggle to protect the people in the area. Both struggle alot for being outnumbered and face the deaths of many of their comrades. both have their weird sides as well. 

Both series are set in warring periods of Japan and focus on the complexities of family, tradition, honor, and responsibility of leaders. The lead is at a disadvantage due to others under-estimating their resolve/goals. Dororo does involve more fantasy/horror elements, but if that doesn't bother you, it is a good follow up to this series.