Actress Koo Hye-sun added a new profession after a 10-year hiatus.

On the 3rd, Koo Hye-sun conveyed greetings as an inventor through a post on her social media account saying, "Korea Invention Promotion Association (KIPA) inventor interview. Have a pleasant holiday."

Koo Hye-sun had an interview as an inventor with the Korea Invention Promotion Association (KIPA). Koo Hye-sun developed a flat hair roller, nicknamed "Ku-roll," and has already filed a patent application, saying, "If when I'm a grandmother a baby is wearing the hair roller I made," expressing her wish.

Earlier, Koo Hye-sun, who revealed her résumé along with the logo of the venture company she founded, "Studio Koo Hye-sun Co., Ltd.," and announced a fresh start after receiving a venture company confirmation, reported that she signed an agreement regarding the hair roller for which she filed a patent.

In particular, Koo Hye-sun has expressed discomfort that her daily life is consumed by her divorce from Ahn Jae-hyun just as she prepares to start out as a venture entrepreneur and inventor.

Meanwhile, Koo Hye-sun is active in various fields as an actress, director, singer and inventor. Her acting activities have been on hold since she left the cast of "You Are Too Much" in 2017 due to health issues.

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