An is terribly shocked to know that Jae In’s father was the arsonist of Yeongseong Apartment fire, and he runs away from Jae In. Ji Soo strongly believes that Seong Mo’s mother is still alive and is now living as Kim Song Hee. However, Ji Soo doesn’t understand why Seong Mo keeps it as a secret to her. Meanwhile, the security camera around the security center is down again, and Jae In runs into a suspicious man.