Reborn, I Became Dragon Queen with My Daughter

Alchemist Alya is betrayed and killed by her husband Carlos while giving birth. Reborn ten years earlier, she is pushed off a cliff by Carlos, who chooses a princess. She meets Regnis, the drugged Dragon King. After one night, she bears their half-dragon son Eugene. Seven years later, Carlos and the princess target them again. Regnis returns, exposes the truth, punishes their enemies—and Alya and Regnis finally find happiness.