Kenta Nishi, now in his old age, is working hard at home to make a living. He sacrifices himself for the care of his wife, who suffers from dementia. He is happy so far, but his life turns bad when the depression cost him his job. He gets so tired of everything that he makes his mind up to get away from this life. He buys a new car, and drives far away into the forest. Now deep in the forest, he comes upon a strange old man, who is unexpectedly in the similar situation. For whatever reason, he begins to feel uncertain about himself.