Himitsu – Kuro no Chikai

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.

• Gui Tu(Ongoing)
• Villainess Level 99: I May Be the Hidden Boss but I’m Not the Demon Lord(Ongoing)
• I've Been Killing Slimes for 300 Years and Maxed Out My Level Max Level Witch(Ongoing)
• Luna(Ongoing)
• Magic, Mechanics, Shuraba(Ongoing)

• Chapter 4.3
• Chapter 4.2
• Chapter 4.1
• Chapter 3.3
• Chapter 3.2