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I am courted (*purely) by the prince of the demon world at night!

"You're so wet. Don't hold back."
Mio Kohinata is a romantic office worker who loves fairy tales and fantasy.
She dreams of a fairy-tale romance, but in reality, she has never had a boyfriend, never met anyone, and is too busy with work to do her otaku hobby.
Then one night, a prince from the demon world, Zel, lands on her balcony. It was Zel, the prince of the demon world! A handsome man from the sky...!
She was a little elated, but this was a fine trespassing.
She tried to send him away, but he kissed her on the back of her hand and whispered sweet words like "I came here to get married with Mio"...
The approach that hits all the right buttons and the face is so good that she can't resist and unintentionally takes him up to her room...?