A man who has everything and yet nothing. The only thing successful corporate executive Jinhyeok Son ever really wanted was an ordinary life with a beloved family, a desire arising from the tragic death of his parents when he was a child. This all changes after he finds himself back in his nine-year-old body after an accident — to a time when his parents are still alive, to the very life he had longed to return to! Can Jinhyeok change the past and finally fulfill his dream of an ordinary life?