The SSS-Rank System: From Outcast To Overlord - Chapter 2: Ding! Class SSS Found.

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

[NO. 4212: ‘Humanity’ has failed the Demotion Match.] [NO. 4212: ‘Humanity’ has been deemed useless. Beginning deletion.] As Earth was being erased after their final game ended in failure, Martial Saint Sung JiHan managed to resist deletion and saw messages pop up in front of him. [To think someone would be able to resist being erased.] [Let’s give him an opportunity to re-challenge.] [Player ‘Sung JiHan’ is returning to the time of initial entry in The League.] When he woke back up, he had regressed back in time. Given a second chance, he swore to himself to stop the fall of Korea and humanity and take flawless vengeance against those that ruined things in his original timeline.

Follow the journey of Korea’s Martial Saint, Sung Jihan, as he struggles to prevent a future of destruction and ascends as the Martial God!

How massive must the wealth of a family that has been passed down for five thousand years be? Sometimes, you’ll never know how rich your family really is until you push your parents a bit! Only after inheriting his family’s five-thousand-year fortune did Zhang Menglong realize that the joy of the wealthy is so simple. Bank president, “Mr. Zhang, please, I beg you to deposit your money with our bank, and you can set the interest rate!” Huaxia’s top wealthy second generation, “Does the whole world belong to your family or what?” World’s richest person, “I feel like I am just a poor man!” European Royal Family, “Mr. Zhang, are you lacking a girlfriend? If you are, would you mind finding one? If not, would you mind one more? What do you think about our country’s princess?” Latter, Zhang Menglong found out that the college his parents left him was the most impressive thing. Actually, being a dean turned out to be even more joyful than being the world’s richest person!

At 18, Alex Kain is whisked away to Eryndor, a game-like realm where he gains 'Skill Synthesis', a talent to fuse skills into godlike powers. Battling monsters and conquering dungeons, he builds a harem of strong women drawn to his might and charm. With the power to return to Earth bearing incredible resources, Alex faces a growing threat that endangers both worlds in this epic of adventure, romance, and ambition.