The fourth battle of Wakayama Castle is between Ichinotani Tenma and Anayama Kosuke.  Anayama says "Justice" a lot.  He attacks Tenma with his warped sense of justice.  A badly wounded Tenma continues to fight, hoping for just one thing: to meet the father and mother he's never seen.
They're my mother and father, right?
Son mis padres, ¿no?
Bueno, al fin y al 
cabo son mis padres.
Eles são meus pais, não é?