Actor Yoon Kyun Sang explained his friendship with Park Na Rae. 

On the March 8 airing of MBC's 'I Live Alone,' Yoon Kyun Sang introduced himself, stating, "I'm a close friend of Na Rae noona. I'm grateful and honored to be on 'I Live Alone.'"

Jun Hyun Moo asked how the two became close. Park Na Rae shared, "There was a drinking outing and Yoon Kyun Sang was there." 

Yoon Kyun Sang added, "That day, I told her, 'Let's drink again,' just to be mannerly but she actually contacted me the next day." Park Na Rae said, "That's how we started contacting each other and became like this."