"I believe in that smile. Even if you don't have a soul." 2105 A.D. Japan The humanoid android hiE became part of people's lives and handled tasks that humans could and could not perform. Endou Arato, unlike his friends Kenko and Ryou who hate hiE, felt sympathy for hiE, which are supposed to be just objects. One night, Arato is suddenly assaulted by mysterious falling cherry blossoms that cause hiE and machines to run havoc. Will the cornered Arato be saved by the mysterious hiE Lacia...