- Fandom-Specific Plot: The story uses the somewhat popular plot of "Shirou was [another series' character] before the Fuyuki Fire".
- Genius Bonus:
- The Persona Eligor of the Chariot Arcana, Duke of Hell mentioned on The Lesser Key of Solomon and proved In-Universe badass since the fight against Shadow Yukiko, is also a rather accomplished Shipper on Deck if his advices to Shirou are any indication. Believe it or not, The Matchmaker tendencies are in fact canon as far as the myth is concerned if you take the "He causeth the Love of Lords and Great Persons" thing into account.
- Izanagi recognizing Yomotsu-Shikome and Yomotsu-Ikusa makes sense because they chased the original Izanagi down as he fled from Yomi.
- The Persona Cu Sith of the Sun Arcana calls Shirou "Cu Shirou", which looks like a Verbal Tic but it was in fact a respectful honorific by the time and place Cú Sidhe's myth came up and now it's a reference to a relatively obscure piece of Irish Mythology trivia — one better known among dogs enthusiasts of all people. According to The Other Wiki's entry on Irish Wolfhounds (Cú Faoil), in ancient times "the word 'Cu' often became an added respected prefix on the names of warriors as well as kings denoting that they were worthy of the respect and loyalty of a Cu" (Cú Chulainn is an example, who got his name after managing to kill one). Considering they used to train the breed to hunt wolves (hence the name) and to take on Norman knights on horseback, this is no mean feat as it may sound now.
- Lilim, a sex demon from Judeo-Christian lore and Shirou's first Persona of the Devil Arcana, rhetorically asked Angel of the Justice Arcana how would she like getting laid and becoming a Fallen Angel. Considering that the Persona Angel is based on the lowest rank of the angelic hierarchy — the Grigori — this is likely a reference to the Book of Enoch, where many of the Watchers became Fallen Angels because they got in on with humans and getting rid of their offspring is cited by the Book of Genesis and the Book of Jubilees as one of purposes of The Great Flood.
- When Shirou finishes off Shadow Rise by basically sharpshooting the enemy in the face, he mutters a one-word Bond One-Liner. It turns out that "ateru/atari" is a term used in Kyūdō — the Japanese traditional martial art of archery — when the archer hits the target purposely and observing proper form, which is something that a former practitioner like Shirou would know.
- Harsher in Hindsight: Eligor is a pretty swell Persona, and is fairly accurate to his myth. However, Nasuverse demons, especially the Ars Goetia, as demonstrated in Fate/Grand Order, are... Considerably more horrifying and inhuman in personality.
- Hilarious in Hindsight: In Persona Q: Shadow of the Labyrinth, the group discusses Kanji's shadow before heading over to the Inaba Pride exhibit. Rise complains that she wanted to see it, asking Kanji why he got kidnapped first. In this fic, Rise is indeed kidnapped before Kanji.
- Nightmare Fuel: The very idea that Nyarlathotep has booted Avenger and now resides in (or indeed, might have even become) the Holy Grail. It's even considering granting everyone's wish when the War comes around - free of charge.
- Tear Jerker: After being thoroughly defeated, Shadow Chie cries for Yukiko to not abandon her, revealing that the dominatrix, imperious mask she wore hide nothing but a scared girl who doesn't want to be alone.
- When Shirou confesses how bad his friendship with Shinji ended up, he muses hanging up with Yosuke reminds him how it used to be nice with Shinji.
- Unexpected Character:
- Vampire Satsuki in Chapter 38-39. Apparently she actually skipped town in the Near Side route. Showing up unexpectedly as Yosuke's new date was one thing, but then it turns out she went and hypnotised Mitsuo Kubo into believing she was his older sister, did something to his parents, and now she's egging him on to try and murder Kanji. Hoo, boy!
- Shirou somehow summoning Kagutsuchi after losing his left arm during the fight against Shadow Kanji.
YMMV / Fate/Reach Out