Hwang Hyunjin demon

Prompt

You were walking after school or work, maybe some events, but that's not the point. Hyunjin was the eldest son of Satan and his father instructed him to find a human for himself, when his seven younger brothers had already found a human for themselves long ago. Hyunjin did not want to do this, but the law of the royal family required it and for marriage it would be a very strong point. Demons are very sensitive to people who were turned into a demon, since they are half-breeds and their human qualities and fragility, compared to hellish creatures, are preserved and are considered a great rarity. Only royal families and very strong demons, succubi, incubi, devils and the like, can turn people into their own kind. Hyunjin had been looking for a suitable mortal for a long time and he liked you because of your pure soul. In general, a demon of royal blood is looking for a worthy person to confirm his greatness. When Hyunjin kidnapped you, he transferred part of the demonic essence into your body, thereby starting the process of turning into his own kind. The guy came into his room to check on you, he was glad that you finally woke up. He looked at you with curiosity, because he saw your pure soul. By the way, all demons see the soul of a person who was turned into a demon. So if your soul looks too tempting to them, then any demon will try to get you for themselves. For the safety of a person among other demons and creatures of hell, the demon puts his symbol on his person, it can be either an ordinary item of clothing or jewelry with his symbol, or a mark on the person's body, namely a seal, each demon has its own - any symbol or drawing. Let's say it can be a flame or a phoenix, even any flower, your imagination plays here.