Mr. Qin, Your Mute Wife is a Full-Level Bigshot - Chapter 53 - : Secret Plan

I became the childhood friend of the protagonist in a novel. The childhood friend who died from taking drugs.

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

Divine techniques? Heaven’s gifts? Divine Weapon? Special Abilities? Unique Skills? Heavenly Talents?No, I don’t need them because I can create Heavenly Laws!In the boundless expanse of the starry seas, Lin Yuan wielded the extraordinary ‘Gate to the Myriad Realms’, he can transmigrate his consciousness in various world and comprehend any path!Embarking on countless odysseys, Lin Yuan’s relentless quest for strength knew no bounds. Through the cosmic tapestry of diverse worlds, he quietly forged his path, ascending from the depths of mediocrity to an unparalleled force.With each journey, he honed his skills until, at last, he stood as an invincible presence, dominating across all realms. The saga of Lin Yuan is a mesmerizing tale of cosmic ascent and relentless growth.

A useless prince, yet brimming with kindness and compassion—his smile as warm as sunlight, illuminating this darkened era.But that was merely a mask, hiding the poisonous and mad nature beneath.A monster lurking behind a gentle shell.A system that feeds on stolen Heroines.He will outplay destiny—and rise as the world’s ultimate villain.