The Outcast: I Became the Strongest by Stealing the Eight Extraordinary Skills

The story focuses on character development at first, then gets into the main plot starting around Chapter 9. You can still give it a try, though. There are explanations of the System and the characters' abilities.

[Anime crossover + infinite worlds + nearly invincible]

In The Outcast,

everyone knows of the Thirty-Six Thieves, but few know that one more person was involved.

He secretly learned the Eight Extraordinary Skills.

Decades later, he became one of the two greatest experts in the world.

From then on, the world of the Outsiders gained a demon-like figure, and a young girl appeared by his side...

Old Celestial Master: I'm getting old. I can't beat him anymore.

Zhang Chulan: Grandpa, Grandpa! Take me with you! I'm your own grandson!

Zhang Lingyu: No, I don't have a cross-dressing fetish! Let me say it again: I'm not a cross-dressing beauty.

Chen Duo: He's all the world needs.

And then there's the Wang and Lu families, wiped out...

The two of them gradually begin to understand the truth about the world.

A lighthearted, plot-driven story with an invincible protagonist who crushes everyone. The author really isn't good at writing blurbs, so give it a try.

The actual story is a lot of fun!

Later arcs may include No Game No Life, Type-Moon, A Certain Scientific Railgun, Demon Slayer, and more...