Flashlight a novel

"One summer night, Louisa and her father take a walk on the breakwater. Her father is carrying a flashlight. He cannot swim. Later, Louisa is found on the beach, soaked to the skin, barely alive. Her father is gone. She is ten years old. Louisa is an only child of parents who have severed themselves from the past. Her father, Serk, is Korean, but was born and raised in Japan; he lost touch with his family when they bought into the promises of pos...