A restless man, Kanta, on his way home to his wife and young daughter (Futaba), sits down to rest in a forest. He is tired and thirsty so he eats a red fruit that was lying on the ground near him, and gives thanks to the plum. Some time after this, he starts having vivid memories both in his dreams and while awake of times going back before his birth. He goes looking for a huge tree but finding it does not make him happy.
