(Time travel + local house fight but the heroine doesn't care + two-way redemption + running towards each other + a small amount of conspiracy)
The evil-doing step-concubine had been waiting for more than ten years and felt that she could not wait for the day when the prince died, so she hired someone to kill him and planned to kill the prince and his eldest son together to make room for her own son.
As a result, the prince died, but nothing happened to his eldest son.
The heroine was transformed into the killer who paid for her step-concubine's murder. She was holding highly poisonous tea and preparing to feed it to the unlucky eldest son.
The incomparably handsome man raised his lips and said, "Would you like to take a bite first?"
The heroine who didn't know there was poison in the tea said: "Okay!"
A mouthful!