十三番目の黙示録 (Juusan-banme no Mokushiroku)

Background
The thread of fate twists and tangles...

Based on the Sleeping Beauty tale, The Apocalypse 13th narrates the story of a cursed princess, who sleeps alone in a castle covered in thorns. She has fall asleep by pricking her finger on the 13th spindle, a hundred years ago.

One day, a man (presumed a prince) meets in his dream the princess, and falls in love with her. He feels that she's begging him for help, and starts a journey. He finally reaches the castle, and makes a path through the thorns climbing the tower where the princess sleeps. Once he reaches the room, after kissing her she wakes up, and cries. He hugs and comforts her gently, but she moves away of him, half-transformed into a monster. The 13th spindle was made to prick the cursed child who'll bring destruction to the world, and the princess, knowing this begs the man to kill her.

At the end, the lovers jump from the tower's window, hand in hand, together.

The song is featured in Hitoshizuku-P and Yama△'s album If the World 2 which includes songs based on fairytales. It was released on December 26th, for the Kagamines' seventh anniversary and has reached the Hall of Fame.