The world I reincarnated into was a world that enabled you to use magic after having read a Grimoire.
And the Grimoire’s contents areーー you wouldn’t believe it- it’s 「Manga」.
This world’s people would take around a year to read a single Grimoire (Manga)
While for me, it would not take an hour, as it was「Manga」
Interpreting and understanding all kinds of Grimoires, the 6 year old me who became the World’s Strongest Master Mage, welcomed brides that were also 6 years old, and started living a carefree life……!!