So with the release of the digital version of AR Volume one I wanted to add some things that were added into the novel that werent in the games. I have skimmed through it and I'll only go through the ones I have seen so far.
The man Ardi saved Bougan turns out to be someone Bell knows in the current time.
A few more scenes with Ryuu and the Astraea Familia, mainly for comedy/SOL moments
The white elf and dark elf girl in the images of the LN are the Alecto Familia Captain and Vice Captain, a pair of elven sisters named Dina and Vena both at Level 5. Along with Valletta, they have caused the most murders in the city, and are Hedin and Hogni's archnemesis.
Apate Familia's executives are revealed to be killed by the last battle with Freya Familia with only one head member, an elderly beastman named Basram wearing dark priest clothes fighting the Gulliver Brothers with a bunch of people who look drugged but the scene cuts off before we can get more.
Amid, Mia, Naaza, Chloe, Lili, Bete, Filvis, Heph, and Tsubaki all get their own short scenes during the battle in Orario.
Freya slips in as Syr along with Heith and a few others to find the Evilus disguised as normal people and charm them to take them out.
Zard dealing with Allen was somehow more impressive than the game made it look like, since he didnt even bother using his sword but blocked his spear strike with the back of his armored hand and just send him flying by pushing him back with the same hand the spear was on.
I guess Ottar being in the quest for Behemoth the game mention in the non canon Grand Day is now canon since Ottar remarks the last time he saw Zard is when he defeated the Behemoth looking like a hero.
Alfia's dress actually has magic resistance in it, but mainly to deal with her own magic rather than to deal with enemies magic.
Apparently having hidden Level 6/7 captains was thing in the past, as there were Familias who had their captains that strong but never reported to the Guild, but they were beaten by Zeus and Hera.