In 2016, after hearing about teenagers who were forced to use insoles as sanitary pads due to financial difficulties, she founded a cooperative to promote the use of cloth sanitary pads. The cooperative, Hamanghaneun Geunal (The Day in Jeju), consists of 10 members and operates as a social enterprise with a zero-waste focus. They produce various products using organic cotton, which are introduced and sold at their offline platform, Jigubyul Store. The product name, Sorak, was inspired by the Jeju dialect word “sorak,” meaning “soft and dry.” For the past eight years, she has been donating 100 cloth sanitary pads each month to those in need. This year, she is focusing on developing upcycled products made from marine waste, such as buoys, and is actively engaging in environmental activities like giving lectures to spread the message of a zero-waste lifestyle to more people.