here is an idea for a story
your character is the last of his people of legendary samueri warriors who kill monsters
you come home after an exhausting battle with a evil warlord u vanquish to learn a great evil has destroyed your clan
everyone is slaughtered u find ur love who is near death and vow to her to avenge her death
her soul transforms into a sword for you to avenge the innoncent
as the story goes and years go on u meet a female ninja who you battle to a stalemate and u learn she is just like you her clan also wipped out
and u battle evil together
and you go off saving innoncent people while trying to find what great evil was behind it