A dream sets Yotsuba to thinking about business. And notes to self. Which, yes, leads to eclairs.
Does she say "Bill Gates" (probably as "Biru Geitsu") in the original? Or a Japanese computer dude?
Also, that dream... you get more and more sure it's a dream as it goes. First Koiwai in a suit, then Asagi and Fuuka, and then... Ena?!? No Miura in a suit, though.