Bae Sung-jae and Kim Da-young appeared on episode 329 of the KBS2 variety show 'Problem Child in the Rooftop Room,' sharing various stories about their newlywed life and plans for a second child. The couple discussed their love story, which overcame a 14-year age gap, and their daily life after marriage while continuing quiz talk with the cast.

■ From a Secret Relationship Being Exposed to a Family Persuasion Presentation

The couple opened up about how they first developed feelings for each other, their experiences during their secret relationship, and the process of persuading their families. Kim Da-young shared an anecdote about how their secret relationship was exposed after she lost Bae Sung-jae's card, and a story about her younger brother crying upon hearing news of the marriage. She also revealed that to persuade her family, she organized Bae Sung-jae's life philosophy and character into a presentation and delivered it.

■ The Secret to Losing 15kg After Marriage: His Wife's Diet

Bae Sung-jae said he lost 15kg thanks to his wife's diet after marriage. He weighed 100.1kg before marriage, but after giving up late-night snacks and following the meal plan his wife prepared, he dropped to 85kg. He added that even when traveling for K-League broadcasts, his wife packs a lunchbox for him herself. Kim Jong-kook drew laughter by commenting, "You should be working out, not praying."

The pet names the couple used while dating were also revealed. Kim Da-young called her husband 'puppy,' while Bae Sung-jae called his wife 'baby.' Bae Sung-jae said that when his wife calls him 'puppy,' he even imitates barking himself.

■ "I Hope the Baby Doesn't Resemble Me Even 1g"... The Couple's Wish Ahead of Year-End Birth

The couple also shared their hopes regarding their baby. Bae Sung-jae said he wants a daughter, adding, "If a child is born, I hope it doesn't resemble me even 1g." Kim Da-young likewise said she hopes for a daughter with none of her husband's genes mixed in. The couple is expecting a birth at the end of the year.

Bae Sung-jae also mentioned that although he is only 11 years younger than his mother-in-law, she still uses extremely formal honorifics with him. He said that for their first meeting, he prepared makeup and youthful-style clothes to look younger.

On the broadcast, various quizzes were presented, including ones about wedding culture and baseball team dining rules, complemented by the newlywed stories of Bae Sung-jae and Kim Da-young. After the broadcast, viewers sent various messages of support for the couple on online communities and social media.