What it Means to Cross the Line

Summary

The new year comes with money trouble for Sun-young and a health scare for Moo-sung. Deok-sun gets a glimpse of Taek's life in the spotlight.

Guest stars

• Park Jeong-min as Bo-ra's boyfriend
• Kim Joo-hyuk as Deok-sun's future husband
• Lee Mi-yeon as Sung Deok-sun (older)
• Jeon Mi-seon as Sung Bo-ra (older)
• Woo Hyeon as Sung No-eul (older)
• Jang Hae-song as Wang Xi
• Song Young-gyu as Lee Tae-yong