This was over 200 years ago.

It was after we, the brave party, defeated the Demon King of Dusk, a demon tribe of disaster that brought about the dark ages in this world.

It doesn't mean that our journey will end immediately just because we defeated the Demon King.

The members of our heroic party are splitting up to fight against the remnants of the demon tribe scattered throughout the country.

''Hey. I've been waiting for you. Abel.

Waiting for me in the inn where I stopped that day was a woman with blue hair.

Her name was Daytona.

Daytona, the water brave, was a merchant-turned-magician, a rarity among our brave party.

Her magic freezes the air and stops even the vibration of objects.

When it comes to the blue-eyed system of magic, it can be said that she is as powerful as or even more powerful than me.

''Did you bring me what you promised?

Yeah. Just in case.

After the defeat of the Demon King, I had promised to give Daytona a book as a gift.

Personally, I was reluctant to give a book I wrote myself to someone else, but she had helped me on my journey, so it was hard for me to say no to her.

'After all this time, may I ask you something? Why are you doing this?

Since my mid-teenage years, I had been aiming to complete the Reincarnation Magic, and I left behind the magic born in the course of my research as a book.

However, most of my grimoires were written about the black-eye and gray-eye systems of magic.

Normally, it was supposed to be useless to Daytona, who was good at water attribute magic.

''...... Abel. You will surely be the best sorcerer to leave your name in the future. That's why I thought I'd keep the great sorcerer's personal effects as a souvenir while I'm at it.

Daytona tells us with a snap and a wink.

Huh. How can you say a white line at a time like this?

We know from our long association that this woman is not someone who thinks so feminine.

''So what do you mean by that?''

''Hmph. Of course it's for the hundredth time!　I'm sure the grimoire you wrote would sell for an incredibly awesome price!

That's what I thought. You miserly bastard.

But a promise is a promise, and a promise is a promise.

In fact, I wrote this book when I was a young man to comfort myself, and it's one that has long since become unnecessary to me.

As long as I don't have to read it over myself, I won't mind giving it to you.

'Yes!　Since you're here, I need your autograph!　I think we'll get a higher price that way!

...... You're the guy who can't help it.

So I played a small prank on Daytona.

No matter how much of a book I say I don't need, it's still not good enough for me to get it into someone else's hands in exchange for money.

To my dear comrade in arms, Daytona.

So I described her name on the last page of the book, not my own.

A modest prank, if I do say so myself, but it would have made it a little more difficult to transfer the book to others.