Material preparation: rubber band.

1, the first one is to tie a ponytail, just tie it high.

2. divide the hair into two parts: a and B.

Divide b into 1/4. That's almost enough.

4. Merge 1/4 with B separated from A to the left.

5. Divide the merged A into 1/4 and merge it with the remaining 3/4 of B to the right.

6. Always repeat afterwards. If you don't understand the diagram, to put it bluntly, A and B split into 1/4 and merged with each other, and then continued to split into 1/4 and then merged.

7. Until all the loose hairs in the back are put in, the final shape is as successful as a fish steak.