Datang: I Became the Empress's Biggest Trump Card

Yang Guo traveled through the Tang Dynasty, and his cousin turned out to be the future queen Wu Zhao! He was demoted as the school's scholar for offending Buddhism, but he awakened to the god-level reading system. Read thousands of books, understand the supreme Dharma, and grow up in a low-key manner. When the empress ascends the throne and Buddhism flourishes, that's when he returns with tremendous power!