oh i'm mostly freestyling the story, which is in line with the purpose of the project as a "have fun go nuts" kind of thing, but i do know that the worldbuilding, rather than the plot, is themed around elements in abrahamic religions...but that's pretty obvious i think. a major secondary theme is food, eating, and its part in the cycle of life, and this influences the story a bit more than the loftier themes borrowed from abrahamic religion, but there's no super specific analogues to the story. in my mind it's very much trying to be its own thing.

even when it comes to inspirations from pop culture (which it has: it borrows different things from Tokyo Ghoul, Dungeon Meshi, Final Fantasy Type-0, Monster Hunter, and other smaller influences) those inform the world more than the story...

yeah i have a lot of information about bqv that i have written down, and some that i havent written down, in a google doc, but related to the last question, there's something about the setting that doesnt really get a chance to become the focus in any part of the story and its like, how bqv handles cultural analogues

it's somewhat influenced by the way arknights handles it, but it's also inspired by the history in the philippines as an archipelago. in the philippines, there exist dozens of different subcultures and dialects within the country that grew separately as a result of the physical divisions (that being the water) between them. similarly, in bqv's world's history when the various civilizations were scattered, there were a lot of different cultures that developed separately from each other, and these became the currently-nameless analogues to real-world cultures that things like bqv's names and mythology come from. in the modern age of bqv, most of civilization lives in the cultural melting pots that are the 7 major gardens, so characters with different cultural influences end up interacting, and there are even some who are bicultural, like fray, but there are still less-mixed, smaller civilizations outside those cities.

oh their LAST names yeah kuon's last name jinno is spelled 神野 (roughly "kami"/"god"+"area"/"field"/etc) and she inherited it from someone who took the name for themselves because they had some kind of god complex.

lucia's last name "dapithapon" is a bit more nuanced; the word itself means "dusk" in tagalog (literally, it is a compound word meaning "nearing/towards evening") but it contains the word "dapit" which as a noun refers to the blessing of a dead body before being buried, which is relevant to the whole thing about being an assassin family, and "hapon" which means "evening" but etymologically refers to the time of day when fowl go to roost and go sleep, which is significant to her family's cardinal stigma belonging a draconic bird demon. the "dusk" meaning simply references that her abilities (the minokawa's) feed off light and manifest with darkness.

two notes regarding "dapithapon": it is not "da-pi-tha-pon", it's "da-pit-ha-pon". in filipino, every letter is pronounced individually (which is why "ng" is considered its own letter in the tagalog alphabet). secondly, there is another meaning of "dapit" that is kind of cool but not too relevant (or is it?), but it's better if you find it on wiktionary lol