Her Protector [Charlie Morningstar x Male Reader x MCU]

[This is an AU where Charlie is actually younger than in the canon show. She will be in her teen years and has not developed the idea of the Happy Hotel. None of the characters belong to me nor do the pictures and songs unless I say they do. You belong to you and I own the story. Simple as that.]

On her 16th birthday, Charlie Magne, daughter of Lucifer and Princess of Hell, is sent to the Living World to know how her future subjects used to live and learn how to handle them. There, she goes to Midtown High School and befriends a human male her age called [Y/N] [L/N]. But things don't always go as plan. For example: Charlie is now living with [Y/N]! Crazy, right?

But as the days pass, new challenges emerge against the human and demoness duo that'll rock their worlds and even make them question what and who they're fighting for. But as they grow to live with one another, feelings that far exceed friendship arise. But will they be able to live the life they want?