- The heroine Su Wan: an orphan girl who bears the injustice of her family's extermination, believes that the powerful Prime Minister Gu Yanci was the "executioner" of the year, and lurks beside him as an "actor", with the goal of collecting evidence of crimes and taking revenge with her own hands.
- Male protagonist Gu Yanci: The current prime minister who appears to be cold and ruthless is actually the person who was forced to take over the secret order of "ranscoping the house" to save Su Wan's life. He has been secretly investigating the real culprit of the unjust case. He knew that Su Wan's approach was a trap, but he was sinking step by step due to guilt and heartbeat.
- Core conflict: The identity mismatch between the "avenger" and the "false enemy", the information gap between "protection" and "harm", and the extreme pull between the two in hatred and love.
