It's kind of sad how Yotsuba, who was neglected throughout the manga, finally got her arc and it only lasted 4 episodes, out of which only two actually concerned her feelings for Fuutarou(rest was about the mother and sisters) and even then all of them were mostly back-stories and now two new chapters later and Yotsuba still has zero actual romantic screen-time with Fuutarou(which I can accept if it is a foreshadowing of her being special among the sisters from Fuutarou's perspective). Her tan lines looked cool though.