Nam Yoon Su has shared a behind-the-scenes story from when he visited a gay club as part of his preparation for his role in Love in the Big City. The TVING drama, based on the bestselling novel of the same name by Park Sang Young, explores the ups and downs of youth and love, bringing new twists to the original story. Nam Yoon Su plays Go Young, navigating his 20s and 30s in a journey full of emotional highs and lows. To accurately portray the character, Nam visited a famous gay club in Itaewon multiple times with the production team. “I went to a gay club about three or four times. I have a f…