Yotsuba&! manga volume 4 features story and art by Kiyohiko Azuma.

*sniffle* Yotsuba thinks grown-ups are mean. Daddy plays all kinds of neat games with Yotsuba, but he ALWAYS WINS! Even when Yotsuba TELLS him to be paper in Rock-Paper-Scissors, he doesn't listen! Even then! Yotsuba never, ever wants to be a big meanie grown-up, nuh-uh! But grown-ups get to buy ice cream all by themselves, so... um.... maybe it's okay to be a grown-up sometimes?