u/Fabulous-Waltz7395

Are there any literature/video that touch the lore of this game in depth, heard in a recent documental video that theres norn heaven and such?

i've been trying to figure out how to open science kit + ds at the same time! im using steam version and i can only lauch one thing at the time. ps, isn't there suppose to be science kit tab in the game? pls help;-;