Store designer Ritsuko Niiyama (Riho Makise) comes under Sara Enmado (Ayami Nakajo). Ritsuko, who was a single-mother family, had a hard time as a 'daughter of murder' when her mother was arrested for murder at an early age. However, after her efforts, she succeeded in her work. She got married and gave birth but divorced, and she has recently been worried about her relationship with her rebellious only daughter, Miku (Nagasawa Ki). Meanwhile, her mother, who was released from her, appears, and after her quarrel, Ritsuko murders her mother. However, her body disappears and Ritsuko is stabbed to death by someone.