Editing Nasuverse (section)

=== Angel Notes ===
[[File:Nasuverse slashemperor.jpg|300px|thumb|Notes humanity is pretty out there.]]

Also known as Angel Notes, it is the second-oldest official Nasuverse work but is set in the far future. Earth/Gaia is suffering a spiritual death at the hands of human war and pollution. Humanity itself only survived by bioengineering to survive in the hostile environment. Enraged that the beings that killed her continue to live on her soon-to-be corpse, Gaia released into what was left of the atmosphere a lethal discharge of Mana, killing large swathes of humanity and mutating the flora and fauna into aberrations that would make a [[Death World]] proud. The surviving humans responded by bioengineering themselves AGAIN into monsters beyond Gaia's monsters. In response, Gaia's dying breath was a call to the Ultimate Ones to finish the job. The main story follows the last days of the last unmodified human (and thus the only one capable of wielding a God-Killing Gun), where he finds himself sharing an apartment with an incarnation of Type Venus that he 'killed' five years ago. 

Many other Nasu works, particularly Prisma Illya, reference Notes as a possible bad end for their future.  The infamous God-killing gun, the Black Barrel itself, was alluded multiple times in other works, but only returns to mainstream consciousness ''almost twenty years later'' in Fate/Grand Order, as an upgrade to Mash Kyrielight's Ortinax shield. 

The idea of the Ultimate Ones, particularly Type-ORT, being considered as impossibly-powerful and looming threats across the franchise, also originate in Notes, but much like the Black Barrel mentioned above, the true scale of just how unbelievably BROKEN they were came into play in Fate/Grand Order, where players were finally able to come face-to-face against ORT (or a ''version'' of ORT anyway)...  And let's just say that the reputation is merited. Do note, however, that ORT itself isn't mentioned in Notes, presumably because he was ''so weak in comparison to the others that his defeat wasn't even noteworthy''.