At first glance, the captain having an uncategorized race (written as "???" in-game) despite looking like a human may be due to an Anti-Frustration Feature wherein they could benefit from any race-specific Bahamut Weapon without limiting team synergy. However, there's also a probable lore explanation for this. Lyria had to share her life link to save the captain in the prologue. And as the later chapters of the story and events imply, Lyria is definitely not a true human, maybe an Astral or a being outside of the Sky Realm. Receiving Lyria's life force changed the captain in to a being different from a typical skydweller, hence the "???" classification.
In the anime, the first thing that Rackam does when the crew encounters the Imperial Mages is to shoot the crystals on their scepters. Said mages only rely on their weapons when casting magic, just like in the game, where their attack animation has them waving their scepters.
In Episode 12 of the anime, Leviathan is unable to move when Yggdrasil traps him by summoning an earth pillar. Later, Eugen delivers a shot that finishes the swarm of polluted fish. Both attacks that made Leviathan vulnerable are performed by Earth-element characters. In-game, Water enemies are weak to the Earth element.
Likewise, Zeta's attack on the large fish swarm was implied to be ineffective because she's a Fire-element character, who is weak to Water.
In Episode 13, Djeeta repels the laser beams of the floating droids by simply blocking them with her sword. The weapon that came with the Blu Ray Vol 4 Promo Code is named Prototype and its "Defend" Sword Master ability is a Repel buff.
Threo's "Ground Zero" skill - With just one press of a button, you can send an attack capable of dealing a large amount of AoE damage that bypasses enemy defenses, and is one of the strongest "nukes" in the game. It makes sense if one knows the definition of the term. "Ground Zero" is the point where a nuclear explosion occurred, and such explosion can devastate anything within its radius, no matter how durable they seem to be. But what also crosses this with Fridge Horror is a line dropped by Threo after seeing her beloved forest gone and a town was built in its place - which is a feat the she can do if she would go berserk... and she does also have a skill named "Berserker Forge".
Threo: When I saw that town... When I found out how it had devoured the forest... I wanted to level every last building in that place.
Activating Dark SSR Vira's Luminiera Merge will overwrite any outfit you have equipped on her. On the other hand, her Grand version's Aegis Merge does not have this side-effect. It may initially be considered as a patch fix applied to the latter or it can possibly be another case of Gameplay and Story Integration, considering that when you fight Vira as a boss, her outfit changed and her Dark SSR's Luminiera Merge is a result of an incomplete bond between her and the primal beast. It is only then in her Grand version where there is the benefit of keeping your outfit, because of the complete bond formed between Vira and Luminiera no longer puts any physical side-effects.
Albert is best known for his Lightning-based attacks, and his passive skill guarantees Double Attacks every turn. This trait is an aversion of the common phrase "lightning will never strike the same place twice".
A subtle trivia which is concealed by a Dub Name Change: In "What Makes the Sky Blue II: Paradise Lost", the revival of the Avatar takes place after the death of Lucifer. Avatar takes the appearance of Satan from Rage of Bahamut, Shadowverse, and the summon stone associated with him in Granblue. In other words (and even though Lucifer and Satan are treated as separate characters in the franchise of Cygames), the event parallels the incident from The Bible (or specifically, John Milton's Paradise Lost derived from the first parts of Genesis) where Satan was the result of Lucifer being deposed.
The opening quest for the Magna II Avatar raid has Sandalphon repeatedly killing the aforementioned boss over-and-over again in a looping dream. With the above example connecting the Avatar as a figure of Satan, this scene has a parallel in Islamic lore, where the angel Sandalphon "carries on a ceaseless battle with Samael". Samael is one of the names often confused with (or sometimes associated to) Satan.
In relation to the examples above dealing with biblical names, characters named after mythological pantheon, or popular and historical people will have traits or lore inspired by their original or real-life counterparts. Basic concepts and easily-recognizable ones include Zeus being the god of thunder, Odin riding Sleipnir armed with his spear, Thor using Mjolnir, Fenrir being a subordinate of Loki, Shiva being associated as the Destroyer, Cagliostro with healing and alchemy, Rackam with a ship, etc... However, there are also others who deserve a mention as they have subtle alterations in Granblue from their original counterparts:
Noa is the Primal Beast of ships and shipwrights. He is possibly named after Noah, who is known for the Ark. The similarities would make even more sense thanks to the gacha mechanic that allows you to recruit playable characters and summons into the Grandcypher - including Erunes (based on canine and feline species), Draphs (based on cows and bulls), humans with animalistic traits (Nezahualpilli being a bird-person), and actual animals acting as companions for some characters (Dante's cats, Carmelina's lion, Wulf) and summons (a Gorilla, a duck named Hamsa), etc. This makes a parallel in the biblical narrative where the Ark houses various animal species as part of God's plan. Interestingly, Noah's Ark departs as soon as rainstorm clouds come in, before The Great Flood is delivered. At least in the anime of Granblue, the first task that the party does after the Grandcypher takes off for the first time is to fly through the stormy clouds created by the corrupted Tiamat.
Abel is already dead and has a brother named Cain. But unlike their biblical counterparts, Cain loves his brother, and Abel's death was caused by someone else. Some Biblical translations also suggest that the "Mark of Cain" is a curse that turned him into a nomadic or a wanderer. Whereas, it is the opposite of Granblue Cain's case (at least before he joined the Grandcypher) - He serves loyalty to Pholia in the kingdom of Idelva, staying there with his sister-in-law Leona.
Being a case of both Irony and Gameplay and Story Segregation may initially describe the scene in the 13th episode of the anime where the three girls ride Colossus to cross water, despite having no side effects to the Primal Beast (Colossus, being a Fire-elemental boss should be weak against the Water element). But shortly after, the Colossus vanishes. It simply adds to the fact that any Primal Beast summoned by Lyria would only be a copy or manifestation of the real one.
Upon hearing that Fif has been defeated in a one-on-one match by a stranger samurai, Eahta's first reaction is to challenge that stranger to a duel. That stranger is Narmaya, and Fif fought her to break the latter's Heroic Self-Deprecation. He doesn't even remember who Narmaya is, and Fif's description of her did not help either. When Vyrn asked him if Eahta really thought of a combat from the get-go, he bluntly said "Yes" without explaining why, and the narration did not bother with this until the end of the chapter. That is, until you remember that the Ten Eternals are known as the Strongest Crew in the skies, and a stranger suddenly beating up one of them in a one-on-one would make the rest deal with it as a Serious Business. Just like in Threo's penultimate episode, Seofon warned the other eight after she beat him. So by the time Threo speaks to the rest, most of them initially thought of combat. In simpler terms, Narmaya's last 5★ episode bears a slight similarity to the 5★ episodes of the Eternals.
Pholia has a good reason to worry about feeding chocolate to Bai Ze (a Primal Beast taking the appearance of a dog). Because in Real Life, even a small amount of chocolate can be lethal to dogs - they can experience vomiting or diarrhea at most but can complicate into seizures, internal bleeding, or heart attack. The thing is, she's Comically Missing the Point. Bai Ze is a Primal Beast who won't just die from eating a chocolate.
In her 5★ fate episode, Threo makes fun of Seofon's inability to attract female characters, alluding it to a "bird making a nest". The comparison is actually a Truth in Television, as most bird species make nests for breeding seasons. The allusion is also suitable coming from Threo, who is a Wild Child raised in the forest. So it makes sense that she understands and compares some human culture to their wildlife culture counterpart.
In the "Bzzt! Amped Up Summer" event, Capo Tony becomes startled, panicked and loses sight of Heles (despite her being directly in front of him) when Olivia darkens the area around them. Meanwhile the skyfarers can easily see and converse with their crewmates in the dark without being interrupted by Tony. Of course during this entire event, Tony wears black sunglasses! How much can you even see when you wear black sunglasses in the dark?.
Aside from being a Trademark Favorite Food thanks to Lucifer's suggestion, there could also be a symbolism as to why Sandalphon likes coffee. In "What Makes The Sky Blue II: Paradise Lost", we learn that he had just awoken from a deep slumber. Since then, he might have wanted to keep himself awake, and caffeine does just that.
Why does the Inchoate World appear to have a Celestial Body with glittering stars inside of his seemingly void, pitch-black appearance? In the Thoth Tarot designed by Aleister Crowley, "The World" from Rider-Waite becomes known as "The Universe".
It makes even more sense if one pays attention to the "Inchoate" part of its name. Its defintion refers to a state of being rudimentary, or something which has just begun. The Primal Beast's seemingly void body references that of the creation of the world, particularly in the Biblical passages - where the world was once empty.
Summer Zooey's infamous game breaking status and element make sense when you consider she's on vacation from the keeper of balance, thus causing an inversion of element and being unbalanced unlike her other versions which are on the job.
Zeus is the special final boss for August 2018's Unite and Fight because Europa, the most powerful Water summon, has a special connection with him in Greek myth, more specifically that time he abducted her via flying bull.
In "The Other Side of the Sky", Vyrn has to enroll in Mysteria so that he can learn how to use magic. When he tries to practice channeling a spell, he just can't do it. Considering the events of the first arc's climax, Vyrn gains the ability to cancel or nullify magic, as demonstrated when he nullified Yggdrasil's Malice corruption and Gilbert's Otherworldy form. So it would make sense why Vyrn has difficulties in bringing forth magic - he blocks them in the first place.
The Official Website's Theater section contains additional details regarding some of the characters such as their Hobbies, Likes and Dislikes. These details are also included in the game's official news whenever new characters are released in the gacha. Nonetheless, some of these are worth looking into and explain more to their traits which are not focused on from the in-game story:
Drang dislikes silence. Unfortunately, his original teammates (Sturm, Orchid, Black Knight) are all reserved, calm, stoic silent-types. Yet he doesn't call them out for it. Instead, he is the one who breaks the silence by being the talkative and noisy type, further explaining Drang's loyalty to his friends over his personal preferences.
Lucio dislikes snakes. Now who among the angels are associated with snakes? Azazel. However, this contradicts one of Lucifer's major characterizations from Rage of Bahamut, where Azazel is supposed to be his loyal servant. Strangely enough, Lucio's likes don't list coffee, which is supposed to be one of the things Lucifer shares with Sandalphon. Both of these inconsistencies straight up fuel the theory that Lucio is a different entity from Lucifer. It may make sense if the snake Lucio meant is actually Belial, a "What Makes The Sky Blue" trilogy villain who has snake motifs and is called such by Azazel himself.
As revealed in Azazels skill fate and 000, Azazel follows the Supreme Primarch Lucifer rather than Lucio and is still loyal to him despite being tricked into betraying him. See Fridge Logic for the implications that come with that.
Gacha weapons that are used to obtain characters have Flavor Texts that describe the related character (who is usually the wielder of the said weapon), while others have vague interpretations:
Eden describes a Fallen Angel, but is the unlocking weapon of Lucio, the supposed Supreme Primarch governing the powers of light. But as Lucio's real identity remained a mystery for years since he was included in the gacha, this also went into WMG territory among the fans. But this text becomes subverted and turns into a Red Herring instead, with the revelation in "What Makes the Sky Blue III: 000" regarding Lucio's true identity as Helel ben Sahar, a speaker of the Omnipotent who is synonymous to a loyal servant of god, different than what a Fallen Angel implies.
"The morning star and bearer of light falls into the forbidden darkness. Once a child of the dawn, he is now washed in the sin of taboo. But even with tainted wings, he shall illuminate the fool's abyss."
Melissabelle's unlocking weapon "Split End" is treated like a scythe, because that's how her Prehensile Hair forms when she is in combat.
In the downloadable wallpaper of the 1000th comic strip of ''Grand Blues!''◊, the angelic Primals are shown at the top right corner, with Lucio using his powers of light to bring sparks to the image's title. Beside him is a confused Olivia, seemingly examining him. This may be a proper reaction to how a powerful being would use his powers for mundane things, but there is another lore-wise interpretation of this. Olivia may be looking at Sandalphon, confused that there are now two Supreme Primarchs (as implied in her Fate Episodes, Olivia only knows the existence of one), and she has never met Sandalphon in any event, nor knew of Sandalphon's heritage from "What Makes the Sky Blue II: Paradise Lost" since Olivia wasn't present in the event.
Lucio's penchant of referring to himself as a stage and theater manager now makes a lot of sense with The Reveal in "What Makes The Sky Blue: 000", that he is a speaker of the gods in Granblue Fantasy's creation myth, or rather, the god's proxy. He watches the world the gods created revolve around from behind the scenes and cements himself as a neutral force unless someone tries to harm the balance the gods had established.
Lucio's further explanation of the Creation Myth also serves as a meta-reference to how Cygames essentially developed Granblue Fantasy over the years. To elaborate, here is the quote being dissected.
Lucio: "When the god of the stars undertook to create a new world, he based it on the one he left behind... The building blocks of matter, the fundamentals of ecology, and people's appearances, for example. As well as his Speaker."
"When the god of the stars undertook to create a new world" - Refers to the time when Cygames was still developing the game.
"he based it on the one he left behind..." - Explains how Granblue Fantasy is a Spiritual Successor to the Final Fantasy franchise, with most of Cygames staff involved having past experiences with older FF titles, something that shows in the artworks, gameplay mechanics and music. Additionally, this statement also refers to the time when Granblue came after Rage of Bahamut which further explains the encompassing Crossover situation between GBF and RoB as detailed below.
"The building blocks of matter, the fundamentals of ecology, and people's appearances, for example." - This is an allusion to the Reused Character Design, Production Throwback, The Cameo and Mythology Gag tropes being generally applied to the setting and lore of Granblue and its characters, which is nowadays prevalent in Cygames RPG/Fantasy titles - They love to reuse their character designs and lore, which explains why numerous characters and entities (both appearance and lore-wise) in this game originate from Rage of Bahamut, albeit with subtle changes to make them naturally fit into the new setting. It also stretches further into other Cygames RPG titles too, such as Dragalia Lost and Shadowverse where characters and entities either get directly imported from Rage of Bahamut, have cameos, or look-alikes. Furthermore, ever wonder why many Cygames RPGs all have "Rupies" as the main currency?
"As well as his Speaker" - In this case, WMTSB3 reveals that Lucio is the Speaker being referred to, which serves as a plot point and the reason why he looks exactly likenote In his Lucio form which is revealed to not be his true form (and shares the same voice actor as) two other characters Lucifer and Lucilius. As explained above, this is another example of a reused character design. All three are based on the Lucifer from Rage of Bahamut, a Series Mascot of Cygames, who is prominently featured since their early days promoting RoB.
In that same vein, Supreme Primarch Lucifer, who serves as THE Lucifer for this game, still is heavily associated with Bahamut who is also a Series Mascot and continues to promote the game, also being heavily featured during anniversaries. He and Bahamut as summons even get uncaps at the same time.
Unlike most characters who had a 5* Uncap, Sandalphon doesn't have a special uncap episode or a final uncap episode at all. If one think back in a Gameplay and Story Integration standpoint, the first of the What Makes The Sky Blue trilogy, served as an Establishing Character Moment story for Sandalphon where he is first introduced, and "What Makes The Sky Blue II: Paradise Lost", details how Sandalphon joined the heroes. And finally, "What Makes The Sky Blue III: 000", served as a story that details on Sandalphon's Character Development. Many 5* uncap's in Granblue Fantasy serve as a Character Development story for each character in the past. So "What Makes The Sky Blue III" is already Sandalphon's 5* Uncap and final Uncap episodes in one package.
Unlike his other fellow Lumiel Knights, Baotorda was never subjected to an inquisition by Cordelia. This is likely due to the fact that unlike Charlotta and Bridgette, there were many witnesses to Baotorda leaving his order. In addition, by leaving his order, he was able to achieve two things. First, he managed to prevent straining the relationships between Lumiel and the Erste Empire, and second, he openly expressed his own version of justice by protecting innocent children from being harmed by the empire. Because Cordelia's entire inquisition process solely relies on one question, "What is justice?", it is likely that she is already provided an answer.
In "A Walk on the Wild Side", Tyre intentionally missing out his chance to ask Vira on a date in favor of spending time with the Lowain bros might be a suprising Out of Character moment for him, especially since Tyre just mustered the courage of speaking with his crush after the times of avoiding Vira. He has a generally acceptable reason to do this. The event implies his Hidden Depths trait where he knows how to analyze a situation to liven up the mood of others. Tyre knows that should he have went to the romantic route with Vira, the Lowain trio might have the possibility of being depressed over the idea that a friend they've just bonded for a short while is capable of making a significant leap to romance while Lowain hasn't even managed to make a progress with Katalina.
Out of all the primal beasts he could summon, Geo brings out Freyr to specifically fight Baal because it is a nod to how the Elemental RockPaperScissors mechanics work in this game. Freyr is Wind-elemental and has an advantage over the Earth-elemental characters like Baal. This also applies to the next pairs of primal fights:
Nezha (Wind) had difficulties fighting Zaoshen (Fire) despite being acknowledged by his primal pals to be stronger than them. Fire-elementals have advantage over Wind-elementals. But it was more even because Nezha unlike most wind primals is also part fire.
Snow White (Water) was able to easily freeze Satyr (Fire) without the latter fighting back. Water-elementals have advantage over Fire-Elementals.
Not actually a Gameplay and Story Integration per se, but some characters' playable versions tend to apply some exaggerated tropes or Grand Blues!-exclusive Running Gags into their skill set or mechanics, even though they aren't explicitly covered by their main lore:
Summer Naoise's passive "Irestill Knight" boosts his defense by 80% when he is debuffed. In Grand Blues!, Naoise is able to resist the harmful effects of Katalina's lethal cooking (sometimes even exaggerated as applying the Poison Status Ailment), and eat it like any ordinary food.
Summer Sandalphon's passive "Nostalgic Flavor" makes him immune to the Sleep status effect. Since one of his defining characterizations is his obsession for coffee, it would make sense as caffeine overdose can induce insomnia, or the feeling of sleeplessness.
According to Playable Olivias fate episode, Lucio meeting the crew in his skill fate episode takes place directly after the events of What Makes The Sky Blue, the first event in the Primarch trilogy. However, despite the characters meeting Lucifer prior to meeting Lucio, they dont acknowledge the fact that Lucio looks exactly like Lucifer with the only feature differentiating them being Lucios small wings. This fact is also never mentioned in Paradise Lost which chronologically takes place a year later and is another event in which they acknowledge the existence of Lucifer or 000, the same event in which Lucio actively plays a part in. It could have been chalked up to the creators poor first attempt at tying Lucio into the trilogy or Lucio using some unmentioned charm magic that helps differentiate the two. The differences in their auras isnt even brought up by Lyria who would usually be the first character to point this out.
This is made even more confusing by the fact that Lyria vaguely recognizes Helel as Lucio who doesnt look that much like Lucio to begin with, but doesnt acknowledge the fact that Lucio looks exactly like Lucifer. And in the same event story in which she does that, Sandalphon confuses Lucio for Lucifer even though by the trilogies logic, he shouldnt since no one else does which also opens up another can of worms due to the fact that Olivia could tell Lucio wasnt Lucifer due to the differences in their aura and somehow Sandalphon, who is closer to Lucifer than any other angel or person in general would have been, couldnt. Could possibly be justified as Sandalphon being frantic and confused, or the creators forgetting their own logic to have a slightly more light-hearted scene for Fanservice and at Sandalphons expense but thats never explicitly stated to be the case.
The absence of Olivia and Azazel during the events of Paradise Lost or more importantly 000 is perplexing. Chronologically, they both should have been in the crew already and at least aware of what was happening, especially since characters they both used to be involved with, Particularly Lucifer, are the people of interest and yet they only appear in a flashback that took place thousands of years ago and are never seen or mentioned again.
The Granblue Creation Myth revealed in What Makes The Sky Blue: 000 leaves a few unanswered questions about the Lucifer clones.
For example, regarding the 3 Lucifer clones, if Lucios true form is that of Helel ben Sahar and Lucilius was created as a clone of Helel for the Astral world, why wouldnt Lucilius look like Helel rather than Rage of Bahamut Lucifer who Helel apes the image of?
Granted, this could be meta explained away as a triggered chain of events that lead to the creation of a character that looks like and is named Lucifer for the Granblue Fantasy universe, fulfilling Cygames desire of having Lucifer appear in every original IP of theirs, who in this game is Supreme Primarch Lucifer, but in story it doesnt make much sense.
Why does his Lucio form look so different from his Helel form when that isnt the case for other Primals that take on powered down human forms?
If Helel is perhaps supposed to be the copy and pasted Lucifer of the Granblue Universe, why wasnt he named Lucifer, as every other character that was copy and pasted shares the same name, most some of their personalitynote Except in rare cases like Monika and background as the characters from the assumed previous world. This further implies that Helel isnt truly a Lucifer clone as not only does his true form not resemble Lucifer, he is also vastly different from the original in terms of personality, speech and mannerisms with their only similarity being their loyalty to a Godnote Helel follows Bahamut while Lucifer follows Arbiter Mortis which the original Lucifer ultimately questions, rebels against and kills, as opposed to Helel who remains a loyal follower.
Lucios true name and form is that of Helel Ben Sahar, perhaps meaning he is not technically the Lucifer that was copy and pasted into the Granblue Fantasy universe when it was created as he doesnt really resemble Lucifer or any form weve known Lucifer to have taken in the previous franchises hes appeared in. If that is the case, then why wasnt the true Lucifer copy and pasted into the world as a separate character? Did the birth of Granblue Fantasys Supreme Primarch Lucifer satisfy there being one akin to the origin world, as hes the only one that actually shares the name with the character in both spelling and pronunciation even if coincidentally?
As with the implementation of Azazels character and his scene in 000, its revealed that he still follows Lucifer, still being a loyal servant to him with this being consistent with his loyalty to Lucifer from both Rage of Bahamutnote Azazel was more of a goon to Lucifer in the game while in the anime, theyre actually seen having interactions and a dynamic, Rage of Bahamut: Genesis and its sequel, Rage Of Bahamut: Virgin Soul. This is also implied to still be the case in Shadow Verse as Azazel has a special voice line with Lucifer. He is also in a growing line of Rage of Bahamut characters that are still associated with Lucifer, or are based off of characters or motifs associated him from that game and its successors, despite this universe being different and Lucios being the original here. Does this confirm that Supreme Primarch Lucifer fulfills the role of the Lucifer that was copy and pasted into the Granblue Fantasy universe, rather than Lucio who has no relation to these characters?
As well, when Helel says And his speaker he doesnt necessarily imply that Lucio is the form he was given by Bahamut, especially since we see his true form almost right after. The pictures in elementanaki show that Helel always was in his Helel form when he guided humanity, implying that he only took on the form of Lucio when he decided to go by a different name. We dont know for certain that Rage of Bahamut is the world Bahamut left behind in this cycle, as in a way all of the Cygames universes are connected and there is a possibility that there were many worlds made from these splits. With the reveal of his true form, it could be possible that its Helel who apes the image of an unseen character from another world yet unseen who coincidentally takes on the form of Lucifer for his disguise for some unknown reason.
Again, supposing Helel is supposed to be the copy and pasted Lucifer from Rage Of Bahamut ignoring all the implications that come with that, and that he has two forms both bestowed upon him by Bahamut, why would Bahamut create Lucifer, or at least someone that looks like him, specifically to be his speaker? Bahamut has no close relation to Lucifer other than the fact that theyre both Series Mascot s for Cygames.
Outside of the creation myth, another Luciface related question is Lucios tiny wings. Lucifer was clearly made in remembrance of Helel in his Lucio form, but with Helels power. However, the primary difference in their designs and the only real differentiating feature before them other than their sprites being different is the fact that Lucio has two sets of wings. A tiny pair, and the pair that resemble the Supreme Primarchs wings. Lucifer is only shown to have one pair of wings, which is the Supreme Primarch wings that are assumed to hold all of his power. Lucios tiny wings are fully functional and clearly a part of his body, so it begs the question of why Lucilius didnt give Lucifer two different sets of wings when he made him.
In Event Lily's fate episode serving as a continuation of "A Piece of the Pie", Lily was touring the captain, Lyria and Vyrn around the Crystal Palace and came across the "Propagation Room" on the tenth floor, which is forbidden and guarded by another Crystalia. With the meaning of the word "propagation" and the urges of the other Crystalia to keep the young members away, the room could be implied to be a breeding/mating room for the Crystalia. However, who would be their partner since their race is mostly dominated by females? Do they even abduct males from other races to turn them into their personal Breeding Slave?
In her Fate Episode, Threo mentions that when she was a kid, she played with animals, and the rabbits were tasty. Vyrn immediately comes to a realization, only to be interrupted by a child's scream. Though there's a bit of fridge brillance considering she was raised in the wild, thus such a thing wouldn't be seen as abnormal to her.
Threo: Wrestling with bears, getting into fights with monsters... Chasing down rabbits from sunrise to sunset... Hehe, they were so tasty. Vyrn: Wait. That means after you caught the rabbits you
Depending on the person, the side effects of the "Handsome Gorilla" supplement may vary. But all of the Harvins (and the Captain) all experienced hallucinating everyone's appearances as wild gorillas. This caused the party to attack an unlucky thug. And by the second boss battle, the Harvins willingly drank the supplement to fight the Elder Harvin who threatens to shut down their book convention. The darker side of this event is that the Grandcypher crew fought innocent civilians, mistaking them as animals due to the "Handsome Gorilla" supplement.
It is more implied that the boss battle was just a hyper exaggeration of a debate.
It's shown in "What Makes the Sky Blue II: Paradise Lost" that Sandalphon's prison is a Seraphim Cradle; when Primarchs drop them in battles and raids, there's a very good possibility people are imprisoned inside those Cradles as well.
If the "Winter Nights, Stardust Memories" event is any indication, there is a real Santa Claus in the world of the Skydom, along with his magical flying sleigh! However, the event's story goes as far as mentioning Fenrir eating his reindeer with Loki trying to steal the gifts. By the time your crew reaches the two, the scene implies that Fenrir really did ate the reindeer as there are no longer anyone near the sleigh. It just goes to show how Granblue's Santa Claus is just an ordinary skydweller, who can fall victim to the tricks of the game's antagonists.
In "What Makes The Sky Blue III: 000", Belial tries to explain the absurdity of the near-immortal Primal Beasts wanting to live together with mortal skydwellers, using a simple paragraph that invokes four correlated tropes, which actually make sense if taken seriously. This also exemplifies one of Belial's prominent characterizations as the Fallen Angel of Cunning, as well as the Satanic Archetype of the game - being able to craft convincing lies.
Among the characters in the game, Cagliostro has lived long for at least two millennia thanks to her Immortality Seeker goals, and she might have experienced the full blunt of the Who Wants to Live Forever? trope, as detailed by Belial above.
According to the Creation Myth, the reason why so many characters from Granblue Fantasy look like characters from Rage of Bahamut is because Bahamut imitated the world he left behind when he created this one. However, only a small number of characters actually look like characters from Rage of Bahamut while a majority of the others are Granblue originals. While this may imply that the world Bahamut left behind wasnt necessrily ROB as we know it, it could also imply that other characters that were copy and pasted into this world, including other beloved ones, are long dead due to being copy and pasted before the current time the game is set in. Who knows how long ago the other characters were being born into the world?