He is the eldest son of the Duke of Neia, an incompetent loser. When his cold red eyes opened, he was already known as the Shadow Killer from modern times, and he never failed.
He traveled to another world and became the good-for-nothing young master in the Duke's Palace. When the good-for-nothing young master possessed terrifying power, everyone was shocked. No one believed that the good-for-nothing young man had such amazing power.
She is called a smurf, and there are also legends that she is a cold-blooded animal who kills people without blinking an eye. She is called the witch among demons. She looks sweet and lovely, but is cold-blooded like a devil.
He and she met in this world where the strong is king, and they made their way together.
