Manga by author 4U - Status ongoing

.Miha has always felt like an outsider, even within his own family. Sohwa takes full advantage of that, forcing him to do his biddings. However, an incident takes place that helps Miha and Sohwa to reflect and figure out what they are feeling for each other. +

[Fan translated by Lilith Scanlations] He dreamed of loyalty. The kind of unshakable trust that binds a servant to his master. But the demon prince desired nothing but love. This is their unholy love story.