After being deserted by her parents, 11-year old Miyori shuts her heart from the rest of the world and denies any form of human relationships. She was entrusted in the care of her grandmother who lives near a forest. Miyori will take a walk in the forest where she felt a strong sense of loneliness in the forest which seems to have nothing. However, she soon encounters unbelievable things...

Corry, a French coordinator of pediatric heart transplants is sent to Japan where organ donation remains taboo. As she fights to save a young boy, her partner Jin, a photographer from Yakushima, suddenly vanishes.

Under the vast, open sky of Uda City in Nara, three young strangers meet by chance - Sae, who has just been abandoned by her boyfriend who moved with her, Akari, who has come to find the infamous flamingos her best friend Kyon-chan once spoke of, and Ryutaro, who has never once left his hometown and spends his days living in tedium. Koe and Ryutaro decide to join Akari on her journey. The hearts of these three strangers mingle for only a day; a brief but memorable encounter that will follow them for life.