Fantasy: the Villain Dominates and Deceives Himself

Lin Fang traveled through time, well, it's a good thing. His dream of a harem can finally come true, but - why don't I have a golden finger! Is the guy whose engagement was annulled in front of him the protagonist? So why should I be a villain? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.