MTL - Martial Arts Master - Chapter 746 One step back

When Fang Jin learned that he was in a cultivation novel where the protagonist was a lady and that he had become cannon fodder, he quickly racked his brain to think of a way to save himself.

Everything seemed wrong until he saw it.

[First day as a pet owner.]

[Attractiveness +1]

…

[A day of cultivation with zero gain.]

[Understanding +1]

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates