Otherworld Travel with a Pure and Innocent Grimoire (Pre-Revision Edition)

Yousuke Kageyama became a legendary mage in another world. In his hand, there was always a dependable grimoire…… "Come now, with me, the greatest grimoire, and my master, the strongest mage, we can take down those guys in a snap!" This is an otherworldly magic fantasy woven together with charming heroines! When will he, the only mage in the world, finally be able to enjoy this like a vacation!? "Wait, Master? Master……. You won't forget about me, will you?" *I've decided to post a revised version. Future updates will be the revised version (http://ncode.syosetu.com/n8071db/), so please register there if you need update notifications.