On May 3, the YouTube channel Jeeseokjin World released a new vlog titled "Running Man Ji Hyo’s First-Ever Vlog Revealed! The Life of CEO Nina Song", giving fans a rare look into actress Song Ji Hyo’s role as the head of her lingerie brand.

In the video, Song Ji Hyo took on a new task by designing pajamas for fellow 'Running Man' cast member Ji Suk Jin. She began by measuring his waist, which led to a surprised reaction when she said it was 95 centimeters. Ji Suk Jin responded in disbelief and questioned whether she had measured correctly.

During his visit to her office, Ji Suk Jin expressed concern about the size of the workspace. He remarked that he had seen it on Kim Jong Kook’s YouTube channel and thought it was unusually large for a new business. He questioned whether the high rent might be a burden.

When he asked one of the staff members if the company was doing well, they confirmed that sales had increased and credited Kim Jong Kook's video for the boost. Ji Suk Jin then expressed optimism that featuring the business on his channel would also lead to a further rise in sales.

Many people had assumed that Song Ji Hyo was only the model for the brand. She clarified that she is deeply involved in the entire process, including taking measurements, cutting patterns, selecting materials, and developing sales strategies. She explained that using herself as a fit model helps ensure the products are genuinely comfortable for others.

When asked if she designs men’s products, Song Ji Hyo said she does not because she has never experienced how men’s underwear feels. Ji Suk Jin then suggested that she ask the 'Running Man' members for feedback, joking that they would be eager to help.

Ji Suk Jin shared his honest concerns about her business, explaining that she started without outside investment and is not just a spokesperson but fully responsible for everything. He recalled giving one of her products to his wife, who found it very comfortable, which encouraged him to make another purchase in support of her efforts.

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