六兆年と一夜物語 (Roku-chou Nen to Ichiya Monogatari)

Background
This song was uploaded on April 11th, 2012, an d has reached over 1,000,000 views.

The song tells of "a fairytale that no one knows" about a demon boy with no name, abused by his mother, and who only wanted to be human. He wants to die, and he can't see any dreams in his future. One day, a girl came to the prison where he was held. Although talking was forbidden, she asked him what his name was, and said that they would leave together. They do, and despite the fact that they know nothing about each other, they are happy, and it is just the two of them.

This song is featured in the EXIT TUNES compilation album Vocaloconnection.