Hidetoshi Dekisugi, or Ace Goody in the English dub, (born April 15th)is one of Nobita's classmates and a rival for Shizuka's affection. His intelligence always gets him perfect scores on his tests, and he easily aced any sports he played. Although his favorites are Astronomy and Philosophy, he excels at any subject. Thus, it's not rare for him to receive calls by his friends, asking for guidance or tips.