A struggling delivery worker, Sung, a penniless gambling addict, finally lands a job! On his very first day, he receives a complaint about a wrongly delivered package and rushes over to resolve the issue. But when the door opens... the customer he meets is anything but ordinary!? A man named Min-tae, who introduces himself as a sculptor, suddenly asks Sung,to become his model leading to a shocking turn of events where Sung, timid and insecure about his lower body, ends up baring it all?!