Second, his tenacity is uncompromising. As the first PhD recipient from the KAIST lab, the birthplace of 3D sketching technology, he endured the dropouts of many of his colleagues and seniors under his high standards, becoming the first to graduate, a testament to his tenacity. Even within the company, he refused to tolerate the "80% is enough" attitude, instead retaining only those who consistently aim for 200%, fostering a strong organizational culture. His constant pursuit of improvement, fueled by the product's inherent shortcomings, gives the impression of a "person with a lot of callousness and tenacity, despite his outward appearance."