❶ School themes; boarding schools, prep school, teacher/student pairings, schoolboy hijinks or sexual discovery, military academies, tutoring and teaching in general.
❷ Gender themes; gender confusion, sex changes (only if done right and with research), gender-fucks, hermaphrodites, cross-dressing or other forms of gender-bending, drag queens and transvestites, androgyny, forced feminization, butch/femme, tomboys)
❸ Superpowers; power awakening, power responsibility, learning how to cope, mutations, being a hero/villain, etc.
❹ Dystopias; apocalyptic or post-apocalyptic worlds, alien invasions, pandemics, computers take over, settings in Hell, or earth becomes Hell.
❺ Alternate Dimensions; worm-holes, someone stuck in a different dimension, trying pass as the you of an alternate dimension without getting caught, etc.
f.t island; hongki/jonghun, seunghyun/minhwan, minhwan/wonbin, hongki/seunghyun, seunghyun/jonghun, wonbin/hongki, jaejin/seunghyun/minhwan, ot5/6, gen.
snsd; taeyeon/seohyun, hyoyeon/ yuri, jessica/tiffany, hyoyeon/jessica, tiffany/sunny, yuri/yoona, ot9, any pairing in the world, ever.
f(x); krystal/luna, sulli/luna, amber/krystal, amber/luna, sulli/krystal, victoria/amber, ot5.
2pm; chansung/nichkhun, chansung/wooyoung, chansung/junho, wooyoung/nichkhun, junsu/junho, taecyeon/jay, taecyeon/wooyoung, ot6/7.
shinee; onew/taemin, taemin/key, minho/key, jonghyun/onew, jonghyun/minho.
ss501; hyunjoong/kyujong, hyungjoon/jungmin, kyujong/jungmin, jungmin/kyujong/hyunjoong, youngsaeng/kyujong.
t-ara; (soyeon/eunjung, hyomin/soyeon, boram/hyomin, qri/hwayoung
u-kiss; soohyun/kiseop, kibum/kevin, alexander/kevin, eli/any.
dgna; suhoon/hyunmin, jisang(xing)/suhoon, gwangchul(xing)/injoon, suhoon/jihwan.
misc./others; superjunior (kibum/donghae, heechul/hankyung, zhou mi/kyuhyun, anything), after school (raina/nana, uee/bekah, jooyeon/uee), secret (hyosung/zinger, any) miss a (ot4, suzy/fei, jia/fei, min/suzy), beast (doojoon/dongwoon, dongwoon-fic, doojoon/yoseob), cnblue (jonghyun/yonghwa), dbsk (yunho/jaejoong)
soloists/crossovers; g.na/ anyone in cube, iu/jiyeon, iu/jiyeon/luna, suzy/jiyeon, hyukjae/hyoyeon, donghae/jessica, yoona/taecyeon, chansung/jinwoon, seohyun/yonghwa, nichkhun/victoria, doojoon/one day, soyeon/snsd, g.na/hyosung, yubin/uee, yubin/younha, younha/anyone, jaejin/key, ‘91-line (jaejin/key/mir/jinwoon/dongwoon +tagalong seunghyun), f4 (top, hyunjoong, jaejoong, yoochun).