Name the least number for  君のそばで～ヒカリのテーマ～(popup.version)
CREATE TABLE "pocket_monsters_diamond_pearl_series" (
  "num" real,
  "japanese_title" text,
  "r_maji" text,
  "japanese_translation" text,
  "vocalist" text,
  "episodes_used" text
);
SELECT MIN("num") FROM "pocket_monsters_diamond_pearl_series" WHERE "japanese_title"='君のそばで～ヒカリのテーマ～(PopUp.Version)';