A home-care nurse's relationship with the family she has spent years working for is threatened when her nephew is arrested for kidnapping their daughter. Ichiko works as a private nurse for a family she has almost became a part of. While Ichiko cares for the grandmother, she is also a confidant to Motoko, the eldest sister. But one day, Motoko’s younger sister disappears. And the media soon reveal the kidnapper to be Ichiko’s own nephew.