I found an article about the audio film mentioned. I think it gives you some idea what audio film is; https://k-odyssey.com/news/newsview.php?ncode=1065602301203418
watched this and it's cute and fun! it tackles almost all the problems that couple had during preparing a wedding. fortunately younghee x chulsoo is a strong, sweet, and understanding couple so even though the stress of preparing wedding coming at them, they able to go thru it all