People, objects, information, all coming and going, dramatically changing in the city of Tokyo. A high school student, Sakura, didn’t have something to be absorbed in, simply spending everyday.
One day, a white fox appears in front of her. As she engrosses in chasing after the fox, strays into a different world. That is a world various "Japan" keep changing beyond time and space, "JAPAN IN THE BOX".
Suddenly, Sakura’s smartphone rings and spirit of cherry blossom, "SAKURA" speaks, "All is in your heart", and disappears. In a moment, cherry trees in full bloom fall, and the world changes into a dark, lifeless field. White fox appears again and gives her a good luck charm. With fear, confusion, feelings she never felt before, follows after the white fox.
With enchanting dance welcoming Sakura is the Spirit of Spring, MIYABI. She sings to tell her the only person that can bloom the dead cherry blossom is Sakura. As you take a step you hope for, the world expands. The beautiful scenery of spring blows a wind of hope to Sakura’s heart.
A spirit of Summer, CHOCO, lures Sakura into a summer festival full of smile and joy. An innocent, energetic smile of CHOCO opens Sakura’s cowardly character. As Sakura travels the world of Ryuku, she starts to feel the joy from the bottom of her heart and deepens the bond between friends.
A spirit of Autumn, RIN, is a swordswomen faces light and shadow through mind, technique and body. Through guarding Sakura, she teaches the courage to stand up to fear. Sakura makes a promise with RIN to overcome hesitation, believe in herself and move forward.
The last guide is a spirit of Winter, SETSUNA. Although Sakura knows she has to change, she could not make a final decision to take a step. SETSUNA shows her snow-covered landscape and starry sky. Outstanding nature before her, she realizes how small she is. She feels the snow lighting her heart and stars guiding her way.
Sings and dances to bloom the flowers in heart, MIYABI, the spirit of Spring.
An energetic smile that brings joy, CHOCO, the spirit of Summer.
The strength gives courage to stand up to fear, RIN, the spirit of Autumn.
Nestles and sings to reflect Sakura’s heart, SETSUNA, the spirit of Winter.
After the four spirits harmonize with Sakura’s heart, the spirit of cherry blossom, SAKURA appears to join and become one. White fox appears and tell her to open the good luck charm. Inside, there was a "budding seed", which means, "the end is the start". It can only be sent to the person who said goodbye to their hesitation and took a step. From Sakura’s hands, the joy overflows and budding starts.
After the four seasons, spring comes again to JAPAN IN THE BOX. It is the very time for Sakura to bloom cherry blossoms. With elegance of MIYABI, brightness of CHOCO, Strength of RIN, Warmth of SETSUNA, loveliness of SAKURA, it is a picture only Sakura can draw. As if awaken by SAKURA inside Sakura, by travelling JAPAN IN THE BOX, new "Sakura" is born. In the blizzard of cherry blossom petals, she spread her wings of hope and fly into the future. The story of Sakura is now beginning.