Quadruple:4

prolog

The world is wide and vast.

That wide, wide world...

They were wiped out by a trio of vampires.

The vampire trio were four times more powerful than normal vampires and had a terrible hatred for humans.

So the trio plans a plan to eliminate humans...

The trio of vampires...was rumored even before they annihilated the human world.

V, the second son of the vampire trio, is famous as an assassin - with outstanding looks and gambling skills.

Evel, the eldest daughter of the vampire trio, is famous for her red hair and beautiful appearance, and there is even a rumor that anyone who sees her will fall for her like a fox.

Baek-ah, the youngest son of the vampire trio, is very strong among the vampire trio and is famous for his outstanding IQ.

So, I, the last survivor in this human world, met the trio.