Min Su-hyung, an entrepreneur, lives with his wife Han Mi-yun and daughter Ji-suk with their nanny Kang Young-suk. While Su-hyung is away on a business trip, Yu-jin, the company executive comes to Mi-yun and rapes her. Soon after, Su-hyung's business falls apart and he dies shortly after from an accident. Young-suk takes Ji-suk and raises her and sends her to college. Mi-yun manages a restaurant and raises Sung-hi an orphan girl. Mi-yun sees Young-suk at Sung-hi's school orientation day and secretly helps Ji-suk. Ji-suk passes the law exam. When Yu-jin comes to her asking for money, she stabs and kills him. She is taken custody by Ji-suk. When Young-suk finds out, she tells Ji-suk that Mi-yun is her mother. They embrace in tears.