oooh perchance.... see i Did have the idea for a spinoff set the day after the events of festival darling and in which the two of them discuss boundaries..... and there Was a sort of idea going on for nunsarangz there within the same universe/setting as festival darling but i haven't gone anywhere with either idea...! i'm not ruling any more festival darling-adjacent fics out. but eventually when i get my shit organized enough to finish something (COUGHS current wip COUGHS) (currently on the tail end of final exams) i would love to revisit the possibility and try to flesh it out into something heheheh. also thank you. there are less festival darling enjoyers compared to my other published works but you guys are Really dedicated and Really into it 😭😭

yeppp this one is really obvious!! let me list the signs that, ALL TOGETHER, make me think that way (since individual things and quirks can be read as the author's writing style)... starting out with the summary you have em dashes with spaces outside of them. im not one to go after em dashes as an instant sign of ai because i personally love them and i know a lot of people use them but it's just that in conjunction with all these other things i would take it to be a sign!! next is the usage of the word "unspoken" (kind of genre of word seems to be used in ai generated stuff, along with "unnamed", "unnameable", "undeniable", and especially "unreadable"). then ​​"[statement a]? [statement a], _..." as a kind of emphasis on something (seen in the summary as "and sungho? [...]"). and all of that is only in the summary... in the body of the fic, there's more notably the fact that almost everything is in like.... one line... like one sentence per line..... which Is something ive noticed in other ai stuff. oh shit i just started scrolling and noticed its LONG AF.... okay and ultimately the biggest confirming thing to me is the fact that it's clearly generated in chunks. i dont think ai can generate like entire massive 14k oneshots so it has to be broken up into "scenes" that are generated. then the author put breaks between each chunk. scrolling down to a random point in the fic and saw this pattern: “the kind of”/“the type of” followed by something that might not make a whole lot of sense. also the common usage of a certain phrase: "not just _, but _" or "not _, just __". cit an be switched around in various forms. also groups of threes. but yepppp this one is really really obvious
MOST obvious signs to me personally are the generating in chunks thing and the unspoken/undeniable/unreadable/unnamed/whatever thing...

hahhh........ i dont play about these..... they are not ranked in any specific order... i will indicate which ones include nsfw content to avoid #jumpscares but even if one happens to revolve around nsfw content ive picked it because i think it shows the ship's dynamic REALLY well (yadda yadda sex being an extension of psychological dynamics or a way to subvert expectations of characters blah blah blah im weird af about it). there's also probably more fics than these but i just went thru a list i had quick access to

NSFW https://archiveofourown.org/works/56835310 - i'll be your baby on a sunday - supernatural (rocketsummer) delicious and kind of filthy but adoring myungnyangz
https://archiveofourown.org/works/62715463 - reasonable solutions by reasonable people - anon. kkeomchiz exes to lovers
NSFW https://archiveofourown.org/works/57549400 - slow-fast dance - material. hyukmyungz situationship with jaehyun kind of being a loser throughout the whole thing
BOTH NSFW https://archiveofourown.org/works/60290764 - camille - firstdoor And https://archiveofourown.org/works/64063279 - desire - firstdoor. sanriwooz getting together and sex ft. very yummy introspective taesan pov
NSFW https://archiveofourown.org/works/64059433/chapters/164345764 - overtime - failedendeavor. leerionz valorant sportsfic longfic
https://archiveofourown.org/works/62624422/chapters/160302559 - falling in love (and other side quests) - mhrek. ddingdongz with spiderman jaehyun and begrudgingly cooperative pathetic loser emo boytoy taesan...... Fuuuuckkk
https://archiveofourown.org/works/64122544 - bootleg firecracker - staygame. ddingdongz with really good jaehyun pov characterization
NSFW https://archiveofourown.org/works/60202798 - fish bowls and broken guitars - byeolbiniez. gongfourz 2000s romcom with gentleman leehan and foul-mouthed rockstar taesan....
https://archiveofourown.org/works/59159749 - heaviside - firstdoor. gongfourz, bipolar taesan, introspective, cool formatting
https://archiveofourown.org/works/58208953 - single malt - material. this is my daejangz meal. THE daejangz ever .

YOOOO actually this was a good find it was a little hard at the beginning but as i read more and more it got more obvious! common signs: being generated in chunks, ending of each chunk being oddly conclusive, negative sentence followed by clarification (pattern), "the kind (of) _ that..."/"the type (of) _ that..." (pattern), "like" followed by a nonsense simile (also just excessive use of simile) (pattern), oddly millennial humor at times (a trait ive personally noticed), "isn't/not _, but _" (pattern), "not because _ but because _" (pattern)..... dont even wanna go thru the rest but you were Definitely on the right track here CONGRATS!!! will be using this fic as an example in the upcoming guide to ai signs (at least in fanfic)

(my apologies for getting around to this so late but i'm finally here!!) i don't even know if i need to go through everything but it's definitely ai lol. scenes generated in chunks, typical sentence structure + patterns + vocab, updates insanely quick (instant gratification with minimal effort). even skipping thru the chapters (im literally not reading all that) is like throwing acid in my eyes on purpose LOL... you can tell the "author" has taken the time to add their own formatting and images and such but otherwise the actual body of the work reeks of ai. if u want more specific vocab/patterns lmk but it's generally my PERSONAL verdict and also like its not like im some kind of expert at sniffing it out... it's just my own opinion based on what i can see very clearly haha