Soon-jae receives a suspicious letter with his clinic’s 40th anniversary ceremony just around the corner. The letter turns out to be from an angry patient who claims that his or her mouth has been disfigured because of Soon-jae, and threatens that he or she will throw eggs at the ceremony. Min-ho and his friends who are in need of money volunteer to be Soon-jae’s bodyguards for that day. Meanwhile, Min-jeong cancels her date with Min-yong because of a friend’s wedding she needs to attend, but a few moments later, she calls him out again as she decides not to go to the wedding. But then, she plays a joke on Min-yong saying she will need to go to the wedding.