Why was I born this way?(grell x reader)

This is my first fanfic, it isn't good at all and I probably will never touch it again.

You were born as a demon with a human soul, so unlike other demons, you have human emotions and morals. You hated yourself for how you had to eat human souls just to live. You killed yourself because of how you had to stay alive. But you came back as a half-demon half reaper. (you should probably know this but if you don't I'm sorry about this little spoiler, if you kill yourself you have to repent and live as a reaper) Because you are a half-demon now you have to cover your demon eye and hold back your demonic strength. Everyone in the agency sees you as an outcast, even if your partnered up with them for a mission. You actually like living as a reaper because you don't have to eat human souls anymore, but you hate that you are always alone. The only time you ever really got to talk to someone else was when you were partnered with them for a mission but it seemed like everyone hated you. One day you get paired up with an odd red-haired man who didn't give off the vibe that he hated you.
~disclaimer I don't own Black Butler or any of its characters or the cover photo~
Also bear with me on this one it was my first book and it made me discover that I'm not good with romance stories, but I think that I'm doing better with my other works that I've been doing. So if you want go ahead and check them out.