According to the Korea Herald, San, a member of K-pop group ATEEZ, has garnered attention as the 'real-life' version of the popular 'Northern Duke' character from webtoons and web novels. San earned this nickname through his intense stage expressions and well-built physique, alongside actor Heo Nam-joon as a representative example of 'real-life Northern Dukes.' The Northern Duke is not a creation of a single author but rather a character archetype that has been repeatedly developed and perfected through romance fantasy works and reader communities. This character is a high-ranking nobleman ruling the cold and barren Northern territories, typically a war hero or skilled swordsman with a family curse or past wound, characterized by being cold to everyone but tender exclusively to his beloved—the strongest in his world. The article introduces popular web novels and webtoons featuring the Northern Duke, including 'Lucia,' 'Like Wind on Dry Branches,' and 'My In-laws Are Obsessed with Me,' with the Kakaopage webtoon 'Lucia' recording over 34 million views. This phenomenon demonstrates how webtoon and web novel culture intersects with the public image of real celebrities.