Building The Ultimate Fantasy - Chapter 665 - the secret of the system

“You are boring and bland. Except for me, no one would want you.”On the eve of her engagement, the obedient girl Lin Zhiyi catches her fiancé cheating and is publicly humiliated.In a fit of rage, she chooses the most handsome escort.The man smirks, “I’m expensive, are you sure?”“No money, no man either.”Shredding her obedient facade, she takes full advantage of this man.She even brings him before her fiancé: “I can find someone ten thousand times better than you!”Her fiancé turns pale and respectfully calls out, “Aunt-in-law.”Lin Zhiyi: Huh?

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

Sunny Draco was a middle age man with a completely normal life... Yes, Completely normal life... no wife, children, friends, and most of all... no money!All these changed after getting transmigrated into the future... literally thousands years in the future... Insane.With this new identity, and background, and with the infinite wealth system... Sunny will have to find a way to maneuver through this new life, and dangers.[DING!][You gained a new quest.][Spend 50 billions in 24 hours.][Rewards: Gain grand grade skill.]“Spend 50 billions in one day?!! This will be fun.” Sunny said with a smirk.

To the one who has never owned, obtained, or enjoyed anything throughout their entire life.“You have been chosen.”Thus, I shall bestow this power on you, for you are ’empty.’The power of the Void.Be my apostle and carry out my will.