In You Who Came From the Stars, episode 9, Yoo Se Mi(played by Yoo In Na) told Lee Hwi Kyung(played by Park Hae Jin) about Do Min Joon(played by Kim Soo Hyun). Se Mi found out that Min Joon was the man who saved Cheon Song Yi(played by Jun Ji Hyun) from getting hit by a truck when she was young. Hwi Kyung went to see Se Mi, who has been avoiding him after confessing her love to him, and said, “It must have been tough for you. I’m sorry.” Se Mi asked, “Don’t you feel like you’ve met Do Min Joon before?” She showed him a photo of him twelve years ago and continued, “The man of twelve years ago appeared again. I don’t think Song Yi knows that Do Min Joon is the guy.” Hwi Kyung was shocked.