Here’s a detailed feature on — focusing on how K-dramas, films, and traditional narratives handle the delicate, often controversial trope of cousin romance. 1. Cultural Context: Cousin Relations in Korean Society In modern South Korea, marriage between cousins is legally restricted (generally prohibited up to 8th degree relatives under the Family Relations Registration Act , unless special circumstances apply). Culturally, first cousins are viewed as family, not romantic prospects. However, historical Korea did see cousin marriages, especially among noble families to preserve lineage.