--Be sure to read the last sentence of the synopsis. If that bothers you, proceed with caution!
Xiao Ruoqing took Sister Xinyue’s Heart Sword, her heart utterly broken. She looked at Ninth Brother, who was dressed in prison clothes and now watched her with fear and worry. “Qingqing! You...” She shook her head, then slowly turned and looked up at the man in dragon robes. It was her Third Brother. The man on the throne stared in astonishment at the woman on the execution platform below. Clad in blue, she looked like a celestial beauty, like the moon in the sky or intoxicating fine wine. Her usually lively face, always lit with a smile, was now haggard and pale, touched with a fragile beauty. Her naturally red lips parted. “Brother...” Xiao Ruo Jin hurriedly waved to the Imperial Preceptor, worry and panic in his eyes. “Quick! Bring Qingqing up here! Be careful not to hurt her!” She was the little sister he and Ruo Feng had cherished and protected since childhood.
Xiao Ruoqing shook her head again. “Brother, you need to secure your throne. How can you allow a Grand Princess with troops at her command to exist?”
Xiao Ruo Jin’s heart broke. In an instant, regret and guilt threatened to drown him. He held his sister’s body as it slowly lost its warmth, tears streaming down his face. An emperor never wept, but the man crying now was simply a brother who had lost his sister...
Time passed, and five years slipped by in a flash. The former Prince of Langya had vanished for good, and the renowned Grand Princess Qing Shu had died on the execution platform five years earlier. The Grand Preceptor’s residence was bustling with people. His only granddaughter had fallen into the water and was lying in bed. She slowly opened her eyes and gazed at the people in the room, who seemed vaguely unfamiliar. Her mind was in turmoil. After a while, she opened her eyes again. So... she had come back once more? -- This story clears the names of Zhuo Qing and Xiao Ruo Jin, and the heroine falls for Zhuo Qing! If that bothers you, proceed with caution.
It's pretty good, but a little wordy.