The Concubine's Daughter, Ruhua

While serving as a consort in the Eastern Palace, Shen Ruhua dreamed that after he ascended the throne, he would grant her a cup of poisoned wine. Her more than ten years of sincere devotion had been nothing but a fleeting illusion.

When she woke, she was still his concubine. From then on, she gave him her whole heart, wearing a false smile as she fawned over him and played the canary he adored. At last, she won a promise from him: “Once I ascend the throne, I will set you free.”

But after she left and became inseparable from someone else, he regained his memories of his past life and realized just how badly he had been wrong.

Possessive love and forced marriage, with the second male lead taking the lead + the chase-back-to-win-her arc + both leads reborn