DBD: Kazan Yamaoka

Kazan Yamaoka began his dark pilgrimage by borrowing a weapon from his father - what was it, and whose weapon was it?

Kazan humiliated the warriors and farmers he defeated in a very specific physical way - what did he do to them as a form of degradation?

Who first gave Kazan Yamaoka the insulting nickname 'Oni-Yamaoka,' and what did the term mean?

After Kazan accidentally killed his father, what happened to his father's body that compounded his grief?

Kazan Yamaoka set out on a violent pilgrimage because he wanted to purify samurai culture - but what specifically was he trying to eliminate?