Black Night in Beautiful Girl.

She is a sacred-level magician with silver hair, black eyes, and infinite magic power. She is also the master of the Heart Elf. In the human world, she is the eldest lady of the Bai Group who is feared by everyone. In the fantasy world, she is a supreme ruler. He is a handsome young man, her magic guardian, who has been silently guarding and protecting her. She was a girl who was kicked out of her home by her parents. In order to take revenge, she took refuge in the Dark Tribe at all costs. She must kill her sister, just because of one thing... Until the end... But no one thought that their hatred was arranged in advance, and the person who arranged it was actually the parents of the two sisters who died mysteriously...