Rin, before becoming the she-demon she is now, had an elder brother that went by the name of Keiran Pseudo Nox. The stallion spent his life protecting her from everything, and the only thing he couldn't protect her from is his own existence.


Art by: Myself

– A/N; This is a one-shot, and the backstory behind Keiran is that he was killed by a timber wolf while using his body to protect Rin at a young age. Prior to dying, he became a shapeshifting demon, and used an enchanted aura to hide his presence just from Rin. The two siblings are now fully grown, and have been demons for about 200+ years, and Keiran, even though Rin can't see him, looks out for her and her friends by sticking around to fulfill his vow.