Anime Crossover: Swordsmanship Prodigy Improves Thunder Breathing!

He picks up a wooden stick from the start and passively awakens an S-rank talent for swordsmanship.

Why scrape by in the Demon Slayer world? He turns around and improves Thunder Breathing, pushing the "weakest style" all the way to the pinnacle.

Carrying a legendary compendium, Fang Hao arrives in the Taisho era and immediately displays heaven-defying insight as a "swordsmanship prodigy." While everyone else is still drilling the basics, he has already seen every flaw in Thunder Breathing: lightning leaks away, stamina runs out too quickly, and the recovery after a burst is fatal.

And so, the strongest modified version of Thunder Breathing in history is born: it focuses lightning at the tip of the blade, stimulates the nerves without burning the body, doubles its staying power, and loses none of its killing power!

Kuwajima Jigoro weeps tears of joy. "This boy is the greatest disciple my school has seen in a thousand years."

Agatsuma Zenitsu clings to him in the middle of the night. "Big bro, please create the Seventh Form while you're at it!"

Muzan is still holed up dreaming of becoming a perfect being, unaware that on Mount Fujikasane, a newcomer who has just passed Final Selection has already pointed his blade at Muzan's neck.

But this is only the beginning.

One Piece, Is It Wrong to Try to Pick Up Girls in a Dungeon?, Type-Moon, Campione!, High School DxD.

As the improved Thunder Breathing crosses worlds, every one of them will face its own natural disaster.

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.