S1·E21 Yeon-seo's Distorted Memory

After what happened to Yeon Seo at the rooftop of the ballet theatre, she can’t remember what happened to her that day. Kang Woo is suspicious of Yeong Ja and Ru Na for the kidnapping, but they deny it. Meanwhile, Dan worries about Yeon Seo, so he tells Yu Mi to strengthen the security of the Ivy Mansion.