B6 Comics If you bite the string of your underwear. Until it melts. 1 second (1) / Tsutsumi Hato P Tilhar Ni Comic
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: B6コミック 後輩君が下着のヒモを咥えたら。解けるまであと…1秒(1) / 津々見はと プティルハニーコミックス