The GIF file of iKON, witnessed at the airport becomes hot topic when posted on Korean online communities.

Internet users who saw Bobby pointing out the flaw(?) in Jinhwan Kim's costume reacted :
"Bothered about your brother's skin-exposure? lol",
"Jinhwan's act of covering his chest seems so much like a young-girl's. :)", "They're both adorable :D", etc.