It's Actually Not Easy Wanting to be a Supporting Male Lead - Chapter 14 part6

Yoon Eunah was engaged with Lee Young-soo by their parents. But the marriage didn’t go as it was planned.Faced with Eunah’s absence. Eunbi, her younger sister ended up marrying Young-soo against her will to save her parents pride and self-esteem.Neither her’s nor his parents came up with a plan of involving Eunbi and Young-soo into the marriage. It was full and fully planned by Young-soo, he emotionally advice Eunbi by using her family weakness as his strength to get her acceptance to marry him.Eunbi was suspicious of Young-soo’s plans for marrying her whether, did he married her for revenge? (or) did he married her for her wealth? What will happen when Eunbi finds out the real reasons why Young-soo has married her, will she forgive and accept him as her husband and lead a happy life?

She is a waste daughter from the Su family that couldn’t cultivate. On the day before her wedding, the Third Prince breaks off their engagement in the street. Her own sister replaces her in the marriage to the Third Prince. She became the center of gossiping in the city. In her resentment, she hits herself on the Su Family’s gate, only to become the object of other people’s ghost marriage.

“World” is a game renowned for its remarkable freedom.

In “version 3.0”, I made the decision to maximize my focus on boosting magical abilities!

All stats now revolve around magic! But In turn, I embraced a substantial number of disadvantageous traits.

However, that is inconsequential. I am determined to forge the ultimate Wizard character, It matters little whether the character’s outward appearance resembles a walking corpse.

Yet… What is this?

I have suddenly transformed into that very character – a character with prodigious talent, yet unable to survive a single day without relying on 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