Alluring Secret ～Black Vow～

So we've got another VOCALOID adventure. Rin is an angel that loves Miku, a human, so much that became a human boy and fell because Miku was engaged to a man. Miku fell in love with the boy, they ran away together... Later, a blue haired angel shot her, because Rin and him were friends as angels and Miku made Rin fall from heaven. At the end, Rin used up all the power to save Miku and died. Ta-dah.