On the crescent moon island of Hatsune-Jima where cherry blossom (sakura) trees bloom all year long. Jun'ichi Asakura who can observe the dreams of others, and his adopted sister Nemu wake up in the morning as they leave for school. A new transfer student at Kazami Academy, Sakura Yoshino, who happens to be Jun'ichi's cousin, arrives back from America to the Asakura siblings' surprise...