The Strongest Pokémon Battle: Wataru Vs. Sakaki from the Start

The world of Pokemon, Galar region.

Since his debut, Leon has never lost a match. He has won the championship time and time again and is hailed as the world's strongest Champion!!!

The Ultimate Showdown System descends, launching the Ultimate Trainer Challenge!

From then on, countless powerful Trainers join the battle for supremacy.

Lance: "Witness my army of Dragon-types!"

Giovanni: "Although I'm a Trainer who specializes in Ground-types, this one's an exception!!! Go, Beedrill!"

Professor Oak: "I was a Champion in the League tournament once, too."

Diantha: "I'm not the weakest Champion!"

A young man in a red cap appears and sweeps all before him!

This novel and its characters are entirely fictional. Any similarities are purely coincidental. Do not imitate.