The Reborn Princess Plots to Take over the World

In her previous life, she was a one-year-old Crown Princess who helped her husband win the throne, but she was poisoned by her husband... She didn't expect to be reborn in this life. When she opened her eyes, she was back to the age of sixteen, but she met a man who made her feel deeply guilty. She approached him just to avenge her previous life... She joined forces with him to push his opponent to hell...