Take a new piece of A4 white paper (you can also use other paper), then fold it in half along the center line of the long side, then fold it upward by one-third in the direction of the short side, fold the two corners inward, and fold the two corners inward. The hypotenuse of the corner is folded inward, taking on the shape of an airplane. Fold the paper in half, and after completing the above steps, fold the paper outwards on both sides. Then make the tail fin. Fold the tail inward, then fold the indented paper out again, and finally, use a pen to draw your exclusive pattern. Okay, you're done.