expression, godan verb (-ku)
help the weak and crush the strong
A set phrase expressing a chivalrous or heroic ideal: to aid the powerless and defeat the powerful. Often used in contexts of justice, rebellion, or moral duty. The classical adjective endings 弱き and 強き are fossilized here.
彼は弱きを助け強きを挫く正義の味方だ。
He is a champion of justice who helps the weak and crushes the strong.
この物
The hero of this story continues his journey to help the weak and crush the strong.