This is only my second time doing a fanfic exchange, but I had a blast during Yuletide, so I figured, why not? Hopefully you’ll have fun writing for one of these fandoms.
General thoughts: I’m not actually involved much in fandom per se, so some of the things I see floating around, like PWP or cracky AU premises, aren’t as much my thing. (I do occasionally get wild ideas for crossovers, but none of my requests here are like that.) If I’m interested in seeing fic for a source, it’s usually because I want to see more stuff in line with what the canon is like — so if you love the source enough to offer it, you probably love exactly the things I’m looking for!
I like “missing scene” fics, canon events shown from other characters’ points of view, and prequel or sequel stories with actual plots in them (if you have the time and will to write something long enough to have a plot). AU in the sense of “what if X moment had gone differently?” can also be great. Humour is good, and so is angst, depending on the source in question (Tokyo Babylon pretty much comes with angst installed; K-20 generally begs for humour). And, given that this exchange is for Asian fandoms, I’m deeply in favor of stories that get their setting details right, insofar as you’re able to manage that.
If you’d like to see what fanfic I’ve written and received in the past, I’m russian_blue on AO3.
On to the fandoms themselves:
K-20: The Fiend with 20 Faces — I just watched this again tonight, and adored it as much as ever. All of the characters are fabulous. I only put Yoko into my request because, as I said in the notes there, one of the things I’d be interested in seeing could just be about her; anything prequel-ish about her and “the basics of being a lady” and where she learned to do all that stuff would be great. Feel free to shoehorn in any of the other characters, if you like — maybe wee!Yoko visited the circus once and met wee!Heikichi? Or, since I really do love them both, a sequel fic about Heikichi doing something cool as K-20, with Yoko continuing to be awesome. Heck, you can bring back Akechi if you like — whatever! There’s no character in that movie I don’t love, so as long as you have fun with them, I probably will, too.
Om Shanti Om — I’ve always been really struck by the sad, creepy touches with Shanti at the end of the film, so a story that explores that further could be really neat. Was she aware of the years passing? Or did she “sleep,” and only rouse to wakefulness when Om and/or Mukesh returned? If that idea doesn’t float your boat, do whatever you like with the character. Heck, if you want to undertake the writing of an epic — what if she and Om basically swapped places in the second half of the movie? Okay, I’m not even sure that makes sense, but whatever.
Onmyouji — Hee. So I got onto these movies because of Tokyo Babylon sparking my interest in onmyodo, and man, is Seimei smirky or what? He and Hiromasa are hilarious. I’m afraid I don’t have much in the way of specific suggestions here, except to say I’m not interested in seeing their friendship sexualized; I think they’re great just the way they are. Maybe Hiromasa falls for another lady and wacky mystical hijinks ensue. Maybe Seimei gets in trouble and Hiromasa has to save him. Anything, really; the world needs more Heian-era buddy-film fun.
Tokyo Babylon — Oh, man, where do I start? I could pretty much go for anything in this fandom, including slash (so long as it’s not just straight-up porn). I used to think Subaru and Seishiro were slashy when I watched X; then I read Tokyo Babylon and realized it’s freaking canon, in the creepiest way possible. I only requested Subaru because he’s the common denominator for the things I could think up: Subaru and Hokuto pre-canon, maybe during his training, or when they find out Hokuto doesn’t have any talent for onmyodo. Hokuto’s perspective on her twin and the stuff in the series. Something playing off the utterly screwed-up dynamic Subaru and Seishiro have. So many possibilities! Don’t be afraid to get twisted with this one, if you like; the source practically begs for it.
Above all, have fun. (Even with the twisted stuff. Especially with the twisted stuff.) I deeply love all four of these sources, so the mere thought of getting fic from one of them fills me with glee. And my Yuletide experiences led me to feel this is a case where giving really is as enjoyable as receiving, if not more — so I hope you enjoy writing one of these!