Help! The King Has a Terminal Case of Romance Brain

[Just received a rating, well worth checking out]

King x Demon

Silly romance

Leans toward forced love, possessiveness, and madness, but no angst

Everyone knows that Cyrus is the useless prince of the Kingdom of Solrenda. Since birth, the magic core in his chest has been nothing but an empty shell, making him the most mediocre member of the royal family in generations.

The king found him an eyesore, so he sent him away. He didn't care whether Cyrus lived or died. It wasn't as if he was short one son. A useless child could stay somewhere out of sight, where he wouldn't be a nuisance.

Sixteen years later, for various reasons, Cyrus returned to the kingdom's capital, Sorren City.

No one knew how he'd survived all those years. In truth, no one cared.

The old king had power but was foolish and inept. Years of “indulgence” had ravaged his health, and the princes and princesses, whose magical powers were nearly equal, began fighting in the open and behind closed doors for the throne above all others.

Beneath the weight of power, family bonds scattered like dust in the wind.

They scrutinized one enemy after another, yet deliberately overlooked Cyrus, who had a handsome face but was otherwise useless.

A useless prince like him could simply be killed and discarded after they took the throne. He wasn't worth wasting their energy on.

But four years later, one night, the castle's shadows came alive and devoured every living thing they encountered.

At daybreak, Cyrus crowned himself, with his father's mangled remains beneath the throne.

In his arms was a little demon, utterly oblivious to the world around him and gnawing on the pendant attached to Cyrus's clothes.

The useless prince had ascended the throne.

And his queen was the demon most feared and hated by all.