Sung Hye flies into a fit of fury when DNA results say that Yeon Ju is Kang Jang Soo's biological daughter. When Young Sik tells her to lie low for the time being, Sung Hye decides she must go about things differently to get her own way. Meanwhile, Yeon Ju sets up an investigation headquarters at Seung Wook's place. She plans a counterattack against Seung Duk.