I Started by Helping My Sister Break Off Her Engagement. I Turned Out to Be the Villain

Qin Jiang, who had an unrivaled family background and extraordinary talent, had originally dreamed of becoming the protagonist, until... His sister told him that she wanted to cancel the engagement! break off an engagement? This is the treatment of the protagonist, and I seem to be a villain. Just when Qin Jiang wanted to change his fate, the system finally arrived. The villain spoiler system can spoil the future trajectory of the child of destiny and change the plot, and Qin Jiang can get rewards. He can predict the future with cheats, and with his unrivaled family background and his extraordinary talent. Hehehe, I am invincible! Protagonist, tremble!!!