"Jiang Fan, I regret it!"
When Xu Yining realized that the useless fiancé she would rather die than marry had taken her sister as his wife and transformed her into a powerful empress, she was filled with regret.
If she could do it all over again, she definitely wouldn't have petulantly let her sister marry in her stead!
Ok, I am 40+ chapters into the story and not a fan of the male lead. Hoping that changes as he is annoying me (please delete this comment if it is considered a spoiler).