Kim So-hyun, the adult role of Kim Tae-ri, added questions to the past history of the two men with a pause when he saw a picture of Nam Joo-hyuk.
In the 4th episode of TVN's Saturday Drama 'Twenty Five Twinty One' (playplayed by Kwon Do-eun/directed by Jung Ji-hyun), which was broadcast on February 20, an adult Na Hee-do (played by Kim So-hyun) was shown watching pictures of the past Baek Lee Jin (played by Nam Joo-hyuk).
Kim Min-chae (Choi Myung-bin), the daughter of Na Hee-do, who is an adult, ran away from her mother Shin Jae-kyung (Seo Jae-hee) home, rebelling against her intention to quit ballet, and is spying on her mother Na Hee-do's 1998 diary at Shin Jae-kyung's house.
Kim Min-chae then found photos taken by five people in 1998, including Na Hee-do (Kim Tae-ri), Lee Jin (Nam Joo-hyuk), Go Yu Rim (Bona), Moon Ji-woong (Choi Hyun-wook), and Ji Seung-wan (Lee Joo-myung). Shin Jae-kyung looked at the picture and said, "Look at the back Jin young." Yu Rim, Ji Woong, Seung-wan, your mother, and Lee Jin were one by one.
When Kim Min-chae said, “This is Lee Jin,” Shin Jae-kyung asked, “Do you know Lee Jin?” and Kim Min-chae said, “I don’t know.” Shin Jae-kyung showed a picture to his daughter Na Hee-do and said, "Min-chae was watching this picture on your album." Na Hee-do said, "When is this?
“At that time, Lee Jin seemed to be a good person, but now he is a child without a heart,” Shin said. “I was 22 years old,” Na Hee-do admitted. Shin said, "Lee Jin met last month. It has been a long time. When asked, "Is it time to be close to seeing you humbly with Yu Rim?" Na Hee-do paused when he met Lee Jin and replied, "No, it was when I hated Yu Rim."