How to fold Kazaguruma

(２１)
Then fold the square that has been circled to make a crane.

(２２)
Make a star-shape like this picture.
Then make a bird-base so that the yellow lines are changed to wings.

(２３)
The bird-base is finished.

First, fold the outside head/tail to the center.
In this step too, fold the head/tail while making space well.

(２４)
After folding the head/tail to the center, raise it.

(２５)
Make creases only at a root of the head/tail.

Then fold the other head/tail to the center and raise it.

(２６)
Raise it like this picture.
The third crane is finished.

(２７)
Spread wings of the completed crane.

(２８)
Then fold the last square.

It is less space to fold a crane than the first to third cranes.
Therefore, make a crane carefully.

Make a star-shape like this picture.
Then make a bird-base so that the yellow lines are changed to wings.

(２９)
This picture is halfway through.

Make a bird-base while moving the head/tail, which is not connected, in the direction of the arrow.
(while moving the head/tail on the bottom completed crane)

(３０)
Make a bird-base while moving the head/tail on the completed crane like this picture.

Then fold the outside head/tail to the center.

(３１)
After folding the outside head/tail to the center, move the other head/tail in the direction of the arrow.
(move the other head/tail under a wing of the bottom completed crane.)

(３２)
Move the other head/tail under a wing of the completed crane like this picture.

By moving it under a wing, it will get harder to put pressure on the center connecting part when raising the head/tail which is connected to others.

(３３)
Raise the head/tail which is connected to others.

Then fold the other head/tail to the center and raise it.

(３４)
All the cranes are finished.

Spread wings of the completed crane.

Then pinch the top parts of the four center head/tail to make creases.
Because you have made creases only at roots of the four head/tail in the former steps.

(３５)
After making creases, make each beak so that all cranes face each other.

(３６)
I recommend that you angle a head and tail of each crane to the outside.
By angling them, this model will be more beautiful.

Kazaguruma is complete!