Which TV Station has a Romaji Title of kegareta shita?
CREATE TABLE "2005_spring_season" (
  "japanese_title" text,
  "romaji_title" text,
  "tv_station" text,
  "theme_song_s" text,
  "episodes" real,
  "average_ratings" text
);
SELECT "tv_station" FROM "2005_spring_season" WHERE "romaji_title"='kegareta shita';