Heaven's Secrets Must Not Be Revealed [Book Transmigration]

Chu Xian transmigrates into the novel he wrote, and knows its entire world inside out. What's more, he unlocks the author's perspective skill, which lets him fill in anything the novel never described using his own will and logic. This should have been the start of an overpowered life, with him crushing all opposition and ascending to immortality in broad daylight. However... when he transmigrated, he brought along the novel he had written. And the damn thing was immediately confiscated and read by someone after he transmigrated. Read, read, read, read, read! So after transmigrating, he faced three major problems. First, a super-genius who died young forces him to defy fate and change her destiny. Second, the protagonist cries to him every day, whining that someone has stolen his opportunities again! Third, the big villain keeps trying to imprison him and force him to reveal (make up) other cultivation opportunities.