Female lead's perspective:
Xie Xuan rose from the bottom to become an all-powerful Imperial Tutor. Unfortunately, the late emperor was in poor health and had no daughters. On her deathbed, she entrusted Xie Xuan with tempering the young emperor's benevolence, ruthlessness, and political cunning, using herself as the whetstone.
For that purpose, she racked her brains and, with selfish motives of her own, poured all the darkness in her heart onto him.
She wanted the young emperor's power, body, and fate to become hopelessly entangled with hers.
From the very first day she began, she had already written her own ending: she would become the shadow of his life, and ultimately die in his arms.
But when she put her plan into action, she discovered that no matter how cruelly she treated him, he always looked at her with a smile. "Master Xie is right. Master Xie is absolutely right. I'll do whatever you say."
Something had to be wrong.
She puzzled over it, unable to understand. She felt she hadn't gone far enough.
When she sat on the dragon throne in the palace, the symbol of power, and thought of the unspeakable: taking him for herself, he seemed to have been prepared for it all along, obediently letting her do as she pleased. "Is this what you want, Master Xie? Do you like it? Master Xie, touch me..."
Xie Xuan: "?"
Male lead's perspective:
In their previous life, the Imperial Tutor Xie Xuan held immense power and controlled the court, constantly opposing the emperor. From the age of sixteen, the young emperor Yu Hanchu had wanted to kill her with his own sword. But she wielded great influence and held his weakness over him, leaving him no choice but to feed himself to the tiger and endure all her humiliations.
He fought for power at court and plotted in secret. It took him eight years to finally kill her. The court was clear of corruption from then on, yet he panicked when he saw the late emperor's final edict to Xie Xuan.
After learning the truth, he searched for her like a madman, casting aside the power he had once valued above all else.
Before a lonely grave, the noble man wept, overcome by regret as he recalled the past.
He knelt before the grave to repent, but his hand involuntarily stroked his belly. Eight months later, another grave appeared behind the first, pressed close against it. The inscription read: The Tomb of Xie Xuan's Husband, Yu.
When Yu Hanchu awoke from his dream, he had returned to the time when he had just begun to take part in court affairs. He looked at the solemn, dignified woman holding a ruler. This was the year Xie Xuan began treating him cruelly and pushing him to grow.
This time, he would never let her go again.
"Master Xie is right. Master Xie is absolutely right. I'll do whatever you say."
"...
Theme: Set a clear goal and persevere