4.254 out of 5 from 183 votes
Both The Legend of Maian and Superior feature a female end-boss (you know like the ones in RPGs) as a female lead. Their common sense is that of a villain, but since they get to hang out with a good guy, they have to adjust their way of thinking "a bit". Both series are medieval-like, action-adventure series, so if you liked one, the other one should prove interesting too.
Köinzell is a master swordsman who, along with thirteen other heroes, was sent by the Szaalenden Empire to block an invasion of their enemy Wischtech. Along the way three died, four betrayed the others and seven defeated the traitors and returned as heroes. At least, that's what people believe. In reality the ‘Seven Heroes' were the real traitors, defeating the four true champions after the seven had fled the battle in cowardice. Köinzell has bided his time for twenty years, honing his skills and recovering from the brink of death so that he may avenge his fallen comrades. The time for vengeance has finally come and all who stand in his way shall be dismembered without hesitation, but it won't be easy as everyone believes the lies of the traitors. With all the soldiers in the land and the public against them, Köinzell and his ragtag allies may have to sacrifice everything if they are to prevail against the might of the entire nation.
A powerful hero of the past returns and his\her actions are bound to shake the world. How can he\she not shake the world, when his\her intentions seem to be bad. If that sounds interesting to you then you're best bet would be to go read Ubel Blatt and\or The Legend of Maian. Additionally, both of those are medieval-like, fantasy, action-adventure series.
P.S. Keep in mind that Ubel Blatt has some mature content in it (though it gets watered down after one or two volumes).