Step 1: We fold the two opposite corners of the square origami into two triangles. Then fold the triangle parallel to the bottom twice.

Step 2: Fold the left and right sides of the triangle parallel to the third crease, then open the intersection and fold it down, so that the tie will be folded out.

Step 3: Fold the left and right corners of the triangle at right angles to the bottom. Fold both sides in the same way and press the edge under the tie.

Step 4: Turn the origami upside down, fold the upper two 45 angles downward to form a triangle, and put this angle into the blue triangle, with the same folding method on both sides. Then the two right angles on the left and right sides are folded inward into triangles to make the edges softer.

Step 5: After step 4, turn the origami upside down and fold the two right angles above the tie to the left and right to form a triangle.

Step 6: Turn your back.

Step 7: Fold both sides in half.