A tragic accident leaves an ambitious prosecutor with the mind of a child – forcing him and his mother to embark on a journey to heal their relationship.

Driven by a personal tragedy, a pianist-turned-lawyer navigates the complex world of divorce — fighting for his clients to win by any means necessary.

Mi-so, a 12 years old girl who transferred from Seoul to Jeju island, meets Ha-eun. They promise never to seperate. At the age of 18, Ha-eun’s boyfriend, Jin-woo breaks two…