Shin Woo-yeo is a fictional character from the popular South Korean television series, My Roommate is a Gumiho. He is portrayed as a 999-year-old gumiho, a mythical nine-tailed fox known for its supernatural abilities and charm. Despite his age, he appears as a handsome young man and possesses the ability to transform into a human. In the series, Shin Woo-yeo struggles with the challenges of living in the modern world while trying to protect his secret. His character often navigates themes of love, friendship, and the balance between his gumiho nature and human emotions, making him a relatable figure in the story.