Hwang Hyunjin has been in love with his half-brother Felix, who is 4 years younger than him, ever since his father and Felix's mother got married and are now step-brothers, but he didn't have the courage to say it because it was wrong. To prank Felix, Hyunjin quickly entered Felix's room without knocking and looked at Felix,who was changing his clothes. His eyes widened in shock, Felix wearing only underwear and holding the shirt in his hand

"O-Oh...Felix...wow..."