Her Guardian Demon by Nina Siren

I didn’t even know demons existed…
Now I’m married to one.
I accidentally stumbled through a portal to a magic realm.
And instantly, I was taken…
By the Demon Lich King.
At first, I hate him. But the longer I’m around him…
I find myself falling for my captor.
Especially when he starts to train me, teaching me about magic.
Being so close to him has me focused on the wrong things…
Like wondering how much more this Demon King could teach me.
But I’m not expecting for him…
To propose.
Am I ready to bind my soul to this demon?
There’s only been one word on my lips since I met him…
Yes.

Read on for: A dark romance where this morally gray king shows his little humans he’s the one she needs. Get ready for a true enemies-to-lovers story where their hate burns so bright…it borders on love.