Angel's Last Mission: Love (2019)

S1E2 Yeon Seo Goes to the Party

Dan visits Yeon Seo's home in search of his handkerchief. Meanwhile, Yeon Seo makes the choice to attend the Fantasia party. Once there, she becomes aware that the guests are gazing at her with sympathy. Later, as Yeon Seo and Seung Hwan are heading home, they get into a car accident, which Dan happens to witness.