Asaemon Yamada

A young ronin who assumes the post of sword-tester. Asaemon's reputation is fearsome among the populace because he killed both his father and his first love. He performed the former at his father's insistence, as the terminally-ill man wanted to test his successor's swordsmanship in an act of seppuku; the latter was his first execution: a criminal who had seduced him as a boy years earlier. He is atypical of portrayals of ronin in that he has a governmental post, owns a substantial house, and does not normally roam the countryside. (Source: Wikipedia)