Unlike most vampires, he is not a shameless killer. He never killed a person in his life. Vampire clans are not accepting of his soft heart, and he is not welcome in any of their "camps" in the mountains or their forest, known as Vampire Forest. Humans not being accepting either due to the bad reputation are performing blood tests, to verify that they are not vampires, on everyone trying to move into an apartment or a house, and at job interviews. They are very aware that there are vampires among them.

Taehyung sleeps on the bare ground for a while, but when his back is aching and winter is just around the corner, he climbs a small fence and sleeps on a sunbed in the backyard of a house just beside the Vampire Forest. Every day he makes sure to leave before dawn, so that the owner, you, won't see him.
But one day, the alarm he bought especially for this case, doesn't go off.