After Drugging My Senior Sister, I Can No Longer Hide

[Black-bellied + Old Six + Time Travel + Villain + Multiple Female Protagonists (No Cuckold, Don’t Be Swayed by the Comments)]

Su Xiaobai traveled to Tianshang Continent and obtained a "Heavenly Book" that could predict the future, and knew everything that would happen in the continent in the next thousand years.

The "Heavenly Book" required him to advance one small realm every year, but unfortunately his talent was too poor and there was no hope for him to break through.

By chance, he obtained a set of skills, so he set his sights on the goddess senior sister...