Why do you do so much for your sister, even losing face for her?

No need to be so unkind.

Hey, you really shouldn't be so hard on me.

and reach the age where they start to treat you coldly, I'll still be on your side.

But I also know she's not the kind of girl who wouldn't be hurt by mean words.

I could hardly be unfriendly to him.

Oh, don't be so harsh. Tell me when you're going to fight,

I can't be so cold to a customer that says good things about our ramen.