When Melody Tenshi was a child, too young to understand this world, her life was torn apart. She watched as humans murdered her entire family, all but sister and herself. Melody's twin sister managed to send her somewhere safe, erasing her memories of her family so that she could live in peace. As humans took her away, her last words were "I love you". 13 years have passed since that day. Melody spent her time living in the forest, but every so often she came to the nearby village for human company. Of course, she was careful not to get close. On a hot summer evening, Melody passed by a boy, slightly older than she was. As their gazes met, her heart stopped. But he disappeared into the crowd, leaving her wondering who he was.