Interesting. But its just another junk

this shirou dosent feel really shirou. his personality feels more like Archers

Algún día volverás a continuar con tu historia ; yo espero que sea así .
Me gustó como le disteis sentido a shirou sobre su deseo de ser un héroe .

It's honestly annoying how drawn out this fight has been. Shirou should have the upper hand in everyway. Yet, for the most part, he seems outmatched. He is constantly caught off guard, he has been injured, he just let's people do long ass chants for no reason, and he hasn't ended a battle that he should've been able to end in one move.

"The thrust of his blade was fast. At this speed, there was no way I could avoid it. Hence..." Ok, why is Goudou able to finish a long ass chant to dodge, and why is Shirou, who would become an absolute monster with Campione upgrades, not able to just beat him into the ground?

It would be good if in the prolog you included the sceen with Pandora & explained why Shirou can't use or gain any Athorities for a year. Also, if the reason for that has something to do with Angraminyu then that curse should have been broken when Godou broke the Athority in the fight.

This is DEFFINATELY a very different sort of Shirou.

Your BEST chapter yet!

It's all very exciting...
But I feel like there should be a Prolog chapter before this about Shirou coming to this world, meeting Athena, and them making their deal (since Athena seems to have agreed not to harm anyone in exchange for his help).
Also, godou shouldn't know Shirou's name before they are introduced.

Its nice, but I feel Shirou is super OOC and the part about Athena is nice, but has no relevance since we wont see her

Traditionally, geas only applies so long as the caster surrenders a portion of their own will as well. Such as " so long as I keep this deal, so must you", or it grants benefits until broken(" so long as you do not eat dog meat, you will be supernaturally strong, but if you do, you will be spiritually weakened" - gist of one of Cu Chuthulian's geases). And I'm pretty sure Shirou is stronger than Ayaka. She conjures swords from her blood. But as far as I can tell, they're just swords. Swords imfused with the divinity of whatever god she invokes to make them, but just swords. Shirou uses Noble Phantasms. And they both have the same style( more or less), same iron will, and divine arms. Plus, Shirou is a godslayer. Magic resistance and prana reserves aplenty, plus Archer's arm gives him 30(ish) years of experience, and Rin's Crest gives him access to Tohsaka Magecraft, plus he has basic training in Local Persian Magic, and that's without even counting his Reality Marble( or more accurately, Archer's Reality Marble).And Ayaka has yet to mention any Reinforcement Magic. Sure, she's obviously going to steal a new Noble Phantasm-level sword from that vault she's robbing, and she has her family's Divine katana, which are one par with Noble Phantasms, but Shirou is Shirou. He has hundreds of Noble Phantasms. With his new reserves, he can just Gilgamesh his way through pretty much anything short of a Heretic God, and even then, he doubtlessly has Anti-Divine weaponry. Especially if he puts his mind to Alteration Magecraft. Archer knew some( case of point: Caladbolg II), but with Tracing and Alteration, he could become a seriously dangerous force in the World. Even more than Archer. Alter their zig-zags( or just alter the shape altogether) of Rule Breaker, lengthen the handle, turn it into an arrow. Fuse it onto Gungnir, and he has the ultimate long-range, Anti-Thaumaturgy Noble Phantasm. Do they same with Harpe, or Enkidu, and the gods are pretty much fucked.

The Will of Humanity is Alaya, not Araya. Also, the Masquerade breaking really considered an extinction event by Alaya? Is people's disbelief that strong? Is that cannon? Also, I'm pretty sure Rin said her mana is at its peak at 2:00 AM. And do you mean 100,000 units of prana or 1,000,000 units of prana? Because either way, damn, that's serious power. That at nuclear level, if I remember correctly. If not above. Holy crap. I guess that's why you don't mess with Heroic Spirits. Imagine EMIYA as a Caster...

(*2) to your Logic: yes, Traced steel beats reinforced wood. But Shirou didn't know that. Kiritsugu taught him that reinforcement is more efficient than projection, and it is, but Tracing is not normal. If you were to project a sword, it'd be worth about "3 points". Of you were to use the same amount of prana to reinforce an identical, preexisting sword, it would be worth anywhere from 15 to 30 points. Seeing the difference? Also, Shirou can't gain Authorities? That is bullshit, for which I demand an explanation. Is it because his soul doesn't weight enough?

The only reason Godou survived Caladbolg was because he slashed it with his Golden Sword. Now, Shirou has gain the powers of Angra Mainyu. Those powers have tainted his soul, and thus, his Magic Circuits, and therefore, his od. Caladbolg was made of pure od. So naturally, it was severely weakened by an Anti-Angra Mainyu Noble Phantasm. So Godou survived. Now, if he hadn't managed to slash him, or Shirou wasn't a Campione, then Godou would be dead. Also, isn't Caladbolg a Holy and or demonic sword? That must have some effect of the blades power to cut it.

You write this fic like you would a middle schooler science report