*This content was translated by AI.

Actress Koo Hye-sun expressed her gratitude after a handmade fountain pen priced at 450,000 won sold out.
On the 19th, Koo Hye-sun posted a photo on her social media with the message: "I will work harder to become an artist who creates good works. Thank you."
The released photo showed the sales status of the handmade fountain pen currently being sold by Koo Hye-sun. The fountain pen, priced at 450,000 won, had some items already sold out, and Koo Hye-sun extended her thanks to those who showed interest in her work.
Previously, when announcing the production of handmade fountain pens, Koo Hye-sun stated, "The price is on the higher side, so I hope people view it as a work of art and use it."
Recently, Koo Hye-sun has continued her journey as an entrepreneur by directly developing various innovative products. Her hair rollers, which are eco-friendly and reusable, have not only received a patent but also successfully entered duty-free shops.
However, the high price of these products has drawn varied reactions from some quarters. In response, Koo Hye-sun appeared on MBN's "Kim Ju-ha's Day & Night" to personally explain the background behind the product pricing.
Koo Hye-sun stated, "Our products are somewhat expensive because mass production is difficult. Everything is handmade and requires up to four stages of processing."
She further added, "Since I was once an artist before making products, I know that pricing art is highly subjective. To move beyond this subjectivity, I had to calculate how much profit could be made by multiplying the cost several times over."
She also mentioned that starting product development and business led her to learn about economics in a new way. Koo Hye-sun remarked, "I think I've started studying money. I realized, 'I didn't know anything about money.'"
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*This content was translated by AI.
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