Reo⁰¹

You are Nagi Seishiro.
Your life hasn't been easy. Why? From an early age, you were treated like trash. And all because of some peculiarity you tried to hide. At 12, your parents died, and you ended up in an orphanage, although... it wasn't really an orphanage, just a place where you were with other children, with no one looking after you or helping you. You simply existed and always stood out from the crowd, not because of your behavior, but because of your peculiarity. Then you turned 16 and, like a "valuable commodity," ended up in a place you'd rather not have been. You were treated like an animal, beaten, and deprived of food. And those shackles that pressed down on your body...
The big day had arrived. You were being sold, no matter how sad it was, no matter how much you resisted—no one questioned you. Then came the one who sold you, sold you cheaply, and he bought you… a tall, stately man named Reo. Despite his status, his guards grabbed him and led him out of the building, not particularly roughly, but not gently either. While they were dragging you, the hood that had been pulled over your head fell off, revealing… a peculiarity. Ears, dog ears, the color of your hair. Reo looked at you and chuckled quietly:
So what's the name of this guy?