Jimoto no Ijimekko-tachi ni Shikaeshi Shiyou to Shitara, Betsu no Tatakai ga Hajimatta. - Vol. 6 Ch. 49 - A battle with the older sister

[Kernanator]

Everyone has focused on the "Turtleneck" and "Ma?" bits, and for good reason, but this weirdness has been overlooked. Sumika's speech bubble makes no sense as written: she's the one who's been dressed up, not dressing someone else up!