On the 9th, a video titled "The Sweetest Brother-in-Law Ever, Even Better Than Yeon Jung-hoon, Revealed for the First Time" was released on Han Ga-in's YouTube channel, "Free Lady Han Ga-in." In this video, Han Ga-in visited her sister's in-laws with her brother-in-law and helped with farm work. Han Ga-in showed her close relationship with her brother-in-law by calling him "oppa" (older brother).

Han Ga-in recalled her brother-in-law's proposal, saying, "Actually, our brother-in-law's proposal story is funny." She introduced the anecdote of him posting a message saying "Seon-young, I love you" on the neighborhood utility poles. She also mentioned the memory of her brother-in-law coming to their house holding roses while having a nosebleed.

In the video, Yeon Jung-hoon introduced his own proposal, saying, "Fireworks went off, and Han Ga-in's photos came down on both sides." To this, Han Ga-in responded, "Brother-in-law's proposal is better. 'Hyo-joo, I love you' has romance."

Han Ga-in also revealed the background of her sister's marriage during a conversation with her brother-in-law. When asked, "Was your sister forced to marry quickly?" she answered, "Kind of, because of me." Her brother-in-law added, "About 80% of it is because of the sister-in-law."

Han Ga-in exposed the fact that her brother-in-law's proposal messages were posted on every utility pole in the neighborhood, and he said, "My mother-in-law was embarrassed and took them all down in the morning." Additionally, Han Ga-in mentioned, "I wanted the nephew to come too, but in my opinion, he didn't come because he didn't want to work."

Han Ga-in and her brother-in-law also talked about the nephew's blind date. The brother-in-law expressed curiosity, saying, "It's tomorrow. I was going to go if it was an open place, but they tried to stop me."

The production team asked, "You've shown all the family members, is there no one else?" Han Ga-in replied, "Everyone except our father." The brother-in-law expressed surprise, saying, "Honestly, I didn't expect even our father to appear." Han Ga-in said, "I never imagined I would be filming here. Even the nephew says he wants to appear again."

This video showcased the close relationship between Han Ga-in and her brother-in-law, emphasizing the warm bond within the family. Han Ga-in was touched by her brother-in-law's loving side, and their humorous conversation brought joy to the viewers.