42-year-old Kyoko Otsuka has spent the last 13 years living life as "mom" for her rebellious daughter and soft-spoken husband. Kyoko thought her average and hectic life would continue this way until one day she is told that she only has a year left to live! Shocked by this news, Kyoko decides she wants to spend the remainder of her life "living for herself." She declares to her family, who have been spoiled and taken her for granted, that she is done being their "mom" and is going to take back her life as "Kyoko"!