My cannon fodder supporting role, starting to marry the villain eldest princess

Summary

Luo Changge found himself transmigrating into a novel he read before staying up late.And became the young master of the second-rank sect that was first destroyed by the son of luck in the novel? !But fortunately, the golden finger, which is necessary for traversers, appeared.Luo Changge grinned, and he accepted the opportunity of the son of luck and even the heroine.And relying on the familiarity of the plot in the book, Luo Changge chose to marry the eldest princess of the Taiyue Dynasty, who will become the biggest villain in the Nine Profound Continent in the future, and form an alliance to kill the son of luck!In short, this is the story of the protagonist and the villain, the princess, conquering the continent and killing all the sons of luck.