You are reading Himitsu – Kuro no Chikai novel (alternative name(s): Alluring Secret - Black Vow) on the NNnovel website, where you can find many of the latest and best novels!!!

>> Scroll to the list of chapters

Based on the popular Vocaloid song.

Rin, a young angel (presumed female, but angels don't have clear genders) falls in love with a young human girl, Miku. However, their love is considered taboo, and so, Rin makes a deal with the devil to be reborn as the human boy, Len, in order to be with Miku. However, their happiness together is short-lived, and even that soon ends in tragedy.

>> List of the novel's chapters:

• Chapter 1 : Prologue
• Chapter 2 : Apple
• Chapter 3 : The White Angel
• Chapter 4 : Meeting
• Chapter 5 : The Girl in Black
• Chapter 6 : Change
• Chapter 7 : Seedling
• Chapter 8 : Contract
• Chapter 9 : Turning Gears
• Chapter 10 : Beyond Affection
• Chapter 11 : That Which Was Abandoned
• Chapter 12 : The Laws of Heaven
• Chapter 13 : The Price of Betrayal
• Chapter 14 : Arrow of Judgment
• Chapter 15 : Epilogue
• Chapter 16 : The World Which He Loved
• Chapter 17 : The World Which He Left Behind
• Chapter 18 : Extra Story MISSION 1 — search for the song
• Chapter 19 (end) : Extra Story MISSION 2 — let the song reach