It's the book series that established the basic concepts of the isekai genre, you know? Everything made later took its premises from there.
That's only kinda true? While plenty of later works did clearly pull from it, isekai as a genre was already established at the time. Youjo Senki, Log Horizon, and Isekai Cheat Magician, among others, all predate Mushoku Tensei
Personally, I didn't find it to have enough of a hook to keep watching
last edited at Jan 17, 2021 9:13PM