kiss stands for kisekae set system which is literally a computer program destinated for dressup games and what not. kiss sets consisting of cel, kcf and cnf files are packed in a lzh archive and are not only based on anime/manga stuff but also cartoons, movies, video games, comics and even original characters ^^

to view your fav kiss set youll need a kiss viewer like playfkiss but you can make your own too!!