【Book publication confirmed by Dengeki Bunko! Scheduled for August release!】

A world where magic once existed long ago, but has now been lost.

Alan, a protagonist who makes his living by pilfering magical artifacts, one day discovers "the magic staff used by the Great Hero." However, at the same time, he time-slips into the past era where magic still existed.

With no lingering attachments to his original era, Alan aspires to build a fortune and rise to prominence in the age of magic.

To do so, he seeks out the Great Hero, the staff's wielder, intending to sell it for a high price――

The "Great Hero" he meets, however, is an incompetent and bumbling girl, far from the legendary figure she would become in the future.