(This panel reads from right to left.)
This is from volume 2 of Wotakoi, which I have yet to read, although I just finished the anime. Kou/Ko is the character I'm most like. I have a little more confidence than she does, thank goodness, but the second-guessing that goes into many of the "casual" in-person interactions I have with other people is exhausting.
My near-future manga reading plans include a volume of Land of the Lustrous which is due TODAY (oops), and then the two volumes of Wotakoi I own, because the anime was incredibly good and now the volumes are screaming at me to read them.
(I'm pretty sure there's a typo in the black box section of this panel. Either that, or the phrasing is awkward. Here's hoping this doesn't happen often in the volumes, or it'll drive me crazy.)