Fantasy: I Sell Secret Books in Another World

Chu Feng traveled to a fantasy world and was bound to a secret book selling system. Powerful Vajra Finger, Nine Yang Magic, Dugu Nine Swords, Tathagata Palm... All kinds of martial arts secrets are available. But Chu Feng himself cannot practice. He can only obtain rewards and feedback from the system by selling these secrets. As a result, there was a cheap secret seller in this world. There are also many people who have grown into overlords and reached the pinnacle of their lives after practicing the martial arts secrets sold by Chu Feng. Demon Lord of the Abyss: My master Chu Feng, without him I wouldn't be where I am today! The King of Demons: The Nine Yin Manual is the best in the world and will not accept any refutation. Peerless Empress: I miss the days when I practiced the Jade Girl Heart Sutra with my husband. No matter how long it takes, I will be here waiting for his return. The introduction is weak, please read the text. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.