[Crossover] As a Martial Artist, Am I the Strongest in the World?!

Synopsis

This is a continent where martial arts reign supreme.

When Yu Shenwu pinned her 1,369th challenger to the floor with a move she'd repeated thousands of times, the challenger looked at her with awe, as if to say, "You're incredible, worthy of being the greatest under heaven!" Expressionless, she led the person who had sworn to become her disciple if they failed to win, hauled them to the entrance, and threw them out with all her strength.

"This is so boring..." Yu Shenwu sat cross-legged in her own arena, looking at the equipment she'd just smashed to pieces. For once, she wasn't thinking about how she'd have to replace it. Instead...

"Aaaaaah! Enough with being the greatest under heaven! I'm done being this world's pillar!"

Yu Shenwu, pillar of the world and legendary protagonist, was still puzzled by her invincibility today.

Noticing that their daughter was growing increasingly apathetic, the world's consciousness secretly tagged a nearby world's consciousness.

After waking up one day, Yu Shenwu found that she had become a boy in another world, one filled with all sorts of strange abilities.

Yu Shenwu, the person who had been given the most prestigious surname in this other world: I don't know how I became a boy, but it's no big deal. I'm so happy I'm no longer the greatest under heaven!

What she didn't know was...

First Yu Shenwu. Gender: male

Superpower: Nullification. Anything that is an "anomaly," whether a superpower or its effects, will be erased.