"Sales have increased slightly compared to last week."

"Well, looks like it did have an effect after all."

Kwak Hyun-woo, the team leader of the advertising planning department, let out a sigh of relief. He had been worried that sponsoring Sky Garden might have been a mistake.

"I was pretty freaked out when the first episode only pulled a six percent rating."

"Yeah, but it bounced back the next day."

The other staff members shared excited smiles. After all, recent sales for A-Diz had risen quite a bit, largely thanks to the popularity of the "Ju Seoyeon Challenge."

Many fitness …