Rebirth of the Revenge Queen

In her previous life, Yi Lanyou was almost tortured to death by her boyfriend and her best friend. At the moment before she died, she chose to take both of them down with her. Her only regret was that she couldn't repay the man who had saved her life. 
When she accidentally had a chance to go back to the year when she was 16, she would never let those who had tortured and humiliated her in her previous life get away with it. More importantly, would she be able to find the person that had saved her?