Responses
He is carrying him like his bride, he is announcing to the commoners through the merchant that he has an official partner. If you want to know more, you can find my analysis about the chapter 45. https://wordpress.com/stats/post/2538/bebebisous33analyses.wordpress.com

http://www.mangago.zone/read-manga/yahwacheop/uu/iur_chapter-45.1/pg-3/
I wonder why Seungho was carrying Na-Kyum in his arms? I suppose Na-Kyum was exhausted but where did they go? Did they perhaps bathe together? If they did, I hope we get to see it in a flashback.