Sneaky One! The Crown Prince’s Adorably Sweet Little Demon Consort

After escaping death several times, Little Demon Sixty-Six of the Demon Realm finally uses a wish to take human form.

From then on, her life changes beyond recognition.

The Demon Realm's eldest princess: Capture her and make her my little sister.

The little immortal official of the Celestial Realm: Capture her and make her my big sister.

The Crown Prince: Capture her and make her my maid.

Huh?

I saved you, so you have to stay and repay me.

All right, then. I'll repay you.

What should I do if I accidentally ruin the Crown Prince's clothes in the wash? I'll go to the Marriage Fate Palace and get a red thread to patch them up.

What should I do if the Crown Prince is hungry? I'll cook that huge fish he's been raising with care for hundreds of years.

What should I do if the Crown Prince is injured? I'll spit on him and rub it in.

The Crown Prince doesn't get angry. Instead, he gives her immortal pills every day and warms her bed every night...