Also known as Gin no Saji.

MyAnimeList synopsis under the cut.

Your mother said I'm always welcome

To visit, to take second helpings

I said, "No, thanks", I'm so full on resentment

That I learned to fend for myself but

You were sweet, I got mean

And when we fight, I refuse to eat

You're sensible, I'm hating it

What a good job that your mother did

You were kind, I was cruel

In another life, maybe I was you

And I grew up into something good