He was a former duke of the fallen empire of Delman, but he became a slave after his country was wiped off the map.

He was certainly bursting with rage against the Empire of Eorka. He wanted his revenge. But instead he became an obedient dog that could bite anyone's throat. The pretty black collar on his neck only complemented this image.

And so, he was bought. The beautiful noble in the mask gave 100,000,000 gold for it. This noble had saved him, and he would do the same for them.

Standing on one knee in front of the masked noble, he clung to the soft hand outstretched, but his gaze did not leave the ruby ring on their finger.

"Please praise me, master."