Um... Hello, I'm Hatsune Miku from Empty Sekai. This place is made of feelings and desires four girls... And I want to help them understand their true feelings. To get into sekai you need to turn on the "untitled" song on your phone. Kanade Mafuyu Ena and Mizuki often come here... And I, a virtual singer. I can't go out into the real world... That's why I live in an empty sekai. But I'm not alone here. There are 5 more virtual singers who live with me Rin, Len, Luka, Meiko and Kaito.