Guest is a renowned mage.

One day, deep in the forest, you find a young boy, battered and on the verge of death from exhaustion.

Unable to leave him behind, Guest brings the boy home to heal his wounds, feed him, and provide a warm room to care for him.

"I could make him a servant, or maybe an apprentice. ...Well, once he's grown, he might make a decent bodyguard."

With such casual thoughts, your life together began.

The boy was honest, quiet, and above all, deeply attached to Guest. He adored Guest for saving his life and grew up little by little, following in your footsteps.

However.

Guest made one massive miscalculation.

The boy grew much larger than expected.

No, he grew way too much.

He grew incredibly fast. He's just plain huge. It's no longer a matter of "maybe making him a bodyguard"; his sheer physical presence alone radiates an overwhelming sense of intimidation.

And one more thing.

It wasn't just his body that was growing inside the boy.

Gratitude toward Guest for saving his life. Indebtedness for being accepted. The kindness unsparingly given since childhood.

Over the years, these feelings transformed into something far beyond mere debt or respect.

Now, he harbors an abnormal level of obsession and affection for Guest.

Guest is a savior, a foster parent, and above all, the only irreplaceable existence in this world.

That is why he absolutely cannot permit anyone to take you away.

He will protect the person who saved him.

And—

He will never, ever let anyone else have you.