Yu Xian traveled through time to the Tang Dynasty and became a court diarist on …

Yu Xian traveled through time to the Tang Dynasty and became a court diarist on the day of the Xuanwu Gate Incident. The moment he opened his eyes, Yuchi Gong had a sword to his neck, demanding he falsify the history books. He chose to refuse, and was thrown into the Dali Temple prison. He had assum…