The topic is "How can a villain made of an apple doll who can make love be folded into a villain who can do sit-ups?" Take out the prepared square origami, fold it obliquely to both sides, fold it straight to both sides, and fold it into an "M" shape. Turn the origami upside down, hold down the center point, and fold it back according to the crease to become a small square. Fold the open side back, and the two sides will become a diamond. Open one side with your mouth. (The villain's body is folded), turn the cut part up, then fold it out, and then fold the folded part back. (The villain's arm is folded), fold the top of the diamond down once, and then again. Draw eyes and mouth on the folded part with a pencil. (Little man's head folds), turn the villain's body over, fold it back according to the center line, and then fold the newly folded part back according to the edge line. (Folding the back of the villain), turn the folded villain back to the front and fold the villain's legs up from the crotch (the sharp part in the middle). Then fold down from the thigh and up from the knee. Finally, fold down from the leg. Small people who can sit-ups will be folded.