Moon In-ok

Yu-na, a level-headed and rational insurance claim adjuster, investigates a questionable death by falling with suspicions of suicide. During her investigation, she meets Soon-kyu, the deceased's elusive guardian. As Yu-na probes further, she begins to question whether Soon-kyu is a mentor or a conman, and her carefully guarded inner world starts to shake.

As a sole witness of the theft, Yubin secretly finds it amusing when Yerim, the most popular girl, loses her laptop. Yubin approaches Gayoung, the culprit, and volunteers to help her out.