This one is a little more complex- I may have to read your story or have a summary of it or of what you want before writing it, so by all means be as specific as you need to be here!  gain, give me a few days, about 3 to 5, especially if you need me to read your work first. 
Again, fandoms:

The Untamed/Mo Dao Zu Shi

Harry Potter

Carry On

Greek mythology

Shadowhunters ( will be a little difficult)

Original( Fantasy)

Original(Romance)

Original (Mystery or Horror)

Other fandoms:

Other original stories:

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I'll respond to your requests as soon as I can to tell you if I've accepted it or not! Please remember the rules!