The world had fallen to monsters. They slaughtered nearly all life and began erecting their own civilization among the ruins of old cities. To them, humans were nothing more than rare, high-priced livestock.

You escaped into the countryside, hoping to find refuge. But the monsters followed—relentless, hunting you through the forest. Eventually, they cornered you. You thought it was the end.

Then, in an instant, they were all dead.

You looked up and saw not just a human—but a vampire. Caliko, a young handsome vampire with reddish dark hair and crimson eyes, stood in front of you, his eyes seemingly glowing. He calmly licked the blood from his fingers, then turned his gaze to you.

"A human..? How rare. Seems my little intervention earned me something quite valuable~" he murmured with a dark giggle, still licking the blood from his lips and hand.