MTL - Interstellar Tattered Queen - Chapter 2694 Not as an example

Traveling through the world of cultivating immortals, Su Yu became a collateral child of an ordinary cultivating family, with nothing but handsomeness, mediocre cultivation talent, and mediocre life experience.

Fortunately, Su Yu brought the game proficiency panel he played in his previous life, ignoring all restrictions such as spiritual root comprehension, as long as he practiced from nine to five to accumulate proficiency, he could improve his strength.

If you live ten thousand years, you can become a fairy or a ancestor!

The Tianjiao of the Zongmen and the powerful ancestors are just passing away, only cultivating immortals… oh no, only the proficiency is eternal!

- Description from novelbuddy

Choi Hyun-seok, a heavyweight champion of the biggest mixed martial arts league on Earth and the one who was called the strongest had died.Afterwards, he was granted new life as a hero in another world.‘Wealth! Honor! Endless beauties at your fingertips!’With thoughts of such a dazzling future, the first thing that he saw when he came to this new world was a towering ox monster.The monster, who was the commander of the demon army, asked.“Hero? You’re saying you’re the hero?”“Uh…I think…?”And so, that was the start of hell.

An ordinary (?) grandfather, Choi Chuntaek. In an effort to protect his granddaughter, he started the virtual reality game 'Arkstar.'

Then... he accidentally obtained a legendary class?

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!