Trainer-san, you knew one day you would forget about -----san

And prepared this in advance

......That is the possibility that comes to mind.

In short, you had something prepared for the occasion that your existence has been recognized by the world again,

But you wouldn't be able to write ------san's name down, so it was enough that you wrote your own name in this letter

And by entrusting the message to the person with the least amount of supernatural sensitivity that I know of,

You don't have to worry about your plan failing

But you have forgotten them once already

There is no guarantee you'll be able to remember even with this "insurance"......

It's not an "insurance"

It's a trump card

Even if I forgot everything

It's for the sake of saving ------