Jun Soo finds inspiration for a new product for BY Group. Joo Yeong's mother brings Cheol Soo's mom to the Na House to show her the newlyweds room. Cheol Soo & Hyeon Seok keep searching for evidence in the bribing & slander case. The reaction to the new NY products is lower than expected. Everyone prepares for Jun Soo & Do Hee's wedding. The reaction for the new BY product increases for the good. Hyeon Seok & investigator Dae Gil find the culprit from the CCTV footage. Do Hee's father is unable to make it to the wedding because of unexpected weather. Do Hee & Jun Soo hold a beautiful wedding ceremony. Where the Gong family gift Do Hee & Jun Soo a wedding song.