This pic is part of a blurb (which I won't go into detail about), regarding the amount of exposed flesh in this tankoubun...
Asago, her face flushed red: "Chotto!! Why are you stripping!!?" [Chotto = hey; hey (wait a minute)]
Munakata, who's taking off his shirt: "It's common knowledge that a man takes off his clothes when he's alone with a woman!!"
Text pointing to Munakata: Boasting.