Love can kill anyone, especially the one you really love, that's what happened to Dara, he really loves Ji Yong but all she thought that Ji doesn't love her back because Ji already have Chaerin. She did lost her mind that's why a tragic event happened to her. But Seunghyun was there for her, loving her even though she tried to love him back, but she can't. It was so saddening to know that it happened to her, she can't beleive on what she have done, it's killing her.