Reborn as the Young Master of the Demon Cult

Transmigrating into a novel? Not bad! I’ve got the most powerful faction in the world, and my dad is the strongest man alive. What’s more, I’m his only child in hundreds of years. He spoils me rotten. Hey, miss, don’t look at me like that! I really am your grandpa. My dad is the sect leader, and your great-grandfather is the island lord. They call each other brothers in private, so you really do have to call me Grandpa! Hey, hey, don’t hit me!