Dragon King Legend: Destroyer of Worlds

Decadent drive! My name is Kadoya Shi! I also have a childhood sweetheart named Dimuli, and her dad is a magician! Future father-in-law! My sister is a Silver Dragon King! And I am the destroyer of worlds! I will never have a harem. Single heroine. Never follow the protagonist! Who is the mastermind behind all this? Why choose me as the savior of this world? Your journey will eventually end! Excuse me! I've got off work This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.