Traveled into a Dragon Clan in Another World, but Was Auctioned Off at the Beginning

Jiang Fei is a college student. On his way to school today, his eyesight goes dark. He travels back in time to a dragon boy who is about to be auctioned. He wants to change his life, but the truth of the world is not simple. The dragon king's bizarre resurrection, the boy's valley, and the weird joker all point to the 21-year-old dragon boy, but he has no idea. What is the secret of the seven dragon kings? What's behind the mask? Forgotten statue? What is this cursed bloodline? Loving someone must pay a price, even... Life The Lazy Dragon King: Oblivion Mission, Redemption, Opening Chapter: The Wail of Easter Island Greedy Dragon King: Annihilation mission, none at the moment, open chapter: none at the moment Raging Dragon King: Destruction mission, none at the moment, open chapter: none at the moment The Dragon King of Lust: Annihilation Mission, None at the moment, Chapter to be opened: None at the moment The Gluttonous Dragon King: Annihilation mission, no mission yet, opening chapter: no mission yet Jealous Dragon King: Annihilation mission, none at the moment, open chapter: none at the moment Arrogant Dragon King: Annihilation mission, none at the moment, opening chapter: none at the moment [The introduction is weak, please move to the main text, the front may be a bit unsightly and boring] The author writes a book for the first time. Finally, I would like to dedicate this book to the cowardly self who once was