The first step is to fold the square paper in half.

Step 2: Fold the unopened side up 1 cm to open it.

Step 3: Fold the leftmost line in the middle.

Step four, press the inner corner out of the crease.

Step 5, pinch clockwise according to the crease.

Step six, then pinch out a sharp corner.

Step 7: Fold down four sides in turn.

Step 8: Fold the last corner to one side.

Step 9: Hold the sharp corner with your hand and turn it clockwise.

Step 10: Roll the four edges of the outermost layer outward.