The Demon King and I
But these party girls have something extra. As the Guardian Keys, possessors of an ancient family secret, they hold the fate of the world in their hands.Gillian, the eldest, is a sensation in the art world— this world, that is. In her other world she’s the Assassin, a knockout who snuffs out dimension-jumpers who foul up her personal space. She never expected to join forces with one. But when a plague of murderous demons plunges the earth in darkness, she has no choice but to get a little help from a being who knows his stuff.