Water Magician

Chapter 667: The Alchemist’s Battle

This is the story of Ryo, who was reincarnated in the world of swords and magic.

It is a story of the royal road to survive using the magic of water attribute.

What is magic? What is swordsmanship?

How does it relate to the laws of physics that we know?

Or what is politics? What is a nation?

Why are there many kingdoms in reincarnation stories? Will republics not work?

Can it be written …?

Since it is a water-based magician, so it shall start with Hydrogen bond!

Manga

A manga adaptation illustrated by Bokutengo began serialization on the Nico Nico Seiga website under TO Books’ Comic Corona brand on September 20, 2021. The manga’s chapters were collected into eight tankōbon volumes as of February 2026.

During their panel at Anime NYC 2023, J-Novel Club announced that they had also licensed the manga adaptation for English publication. In February 2026, J-Novel Club announced that a print release for the manga would begin in July 2026.

A manga adaptation of the second part of the novels illustrated by Kaworu Ōshima began serialization on TO Books’ Corona EX manga website on July 7, 2025. Its chapters have been collected into a single tankōbon volume as of September 2025.

A spin-off manga illustrated by Yuchi Sumika titled The Water Magician Gaiden: Penelopeia no Namida began serialization on Corona EX on July 14, 2025.

Prologuge

“Ryo-san, please calm down and listen.”

It was the phone call announcing the death of his parents.

Having just entered the second year of college, Ryo took a leave of absence, returned to his hometown, and took over the family business.

That said, because he didn’t know the ins and outs, Mr. Shige, who was the managing director, became the president and Ryo became the vice president.

The employees were all people who had played with Ryo since he was little.

… Although he was the vice president, his salary was the lowest … but he learned the work little by little without garnering any particular dislike.

After 11 months, March.

“Ryo-san, shall I help you?”

Seeing that Ryo was still working on his computer even though it was late, Mr. Shige, the president, asked.

“It’s okay … it’s something the youth club is doing so …”

The Youth Department of the Chamber of Commerce and Industry … It was very troublesome for Ryo, who was only a young manager.

It was an organization that was everywhere in the rural areas and many small and medium-sized enterprises belong to it … Of course, there was no problem even if you do not belong to it and there was no merit for Ryo’s company.

However, the previous president asked to be affiliated with it so the current president, Mr. Shige, was still affiliated with it.

Ryo, frankly speaking, was not struggling with his company but was spending time on 『relations with external parties』.

“Mr. Shige, when looked at this angle, our company really has very few documents.”

Ryo, who was creating documents, presentation materials, event manuscripts, and such for the youth club, was impressed by the small number of documents internally.

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