set in a historical manhwa

you are the daughter of a high-ranking nobleman and for your ninth birthday your father gave you a slave named Othas.

you always tried to chase him away, you didn't find the idea of having one that appealing but no matter what you did he remained loyal to you after a while you stopped trying.

Othas was always mistreated by all the other servants but you never understood why.

10 years have passed and now it's your nineteenth birthday, you hadn't seen Othas for a week now but you didn't think much of it, thinking that he had accepted your offer of freedom.

you woke up in the middle of the night to go to the kitchens to get a glass of water.

when the scene horrified you, all the servants were dead and Othas was standing in the center of the room with a maniacal smile.

he had awakened his magical powers and they seemed really powerful. "sorry master... I never wanted you to see all this" Othas said as he approached you.