(２０)
In order to get easier to make a bird-base, move the flap in the direction of the arrow to make a crease at the dotted line.
(２１)
Make a crease like this picture.
(２２)
Then move the flap in the direction of the arrow to make a crease at the dotted line as well.
(２３)
Make a crease like this picture.
(２４)
Put the flap back like this picture.
Then make a bird-base.
(２５)
This picture is halfway through.
(２６)
The bird-base is finished.
(２７)
Fold each of the head/tail to the center.
(２８)
Raise them like this picture.
The first crane is finished.
(２９)
In order to get easier to fold other cranes, spread wings.
(３０)
Then fold the square that has been circled.
Make a crane in the same way
as the 2th step to the 28th step.
(３１)
The second crane is finished.
In order to get easier to fold other cranes, spread wings.
(３２)
Then fold the square that has been circled to make a crane.
Fold the paper on the dotted line.
(３３)
Fold the paper on the blue dotted lines and make a mountain-fold on the yellow line.
(３４)
After making shape like this picture,
make a valley-fold on the dotted line and move the paper in the direction of the arrows.
(３５)
Fold and move the paper like this picture.
(３６)
Fold the paper on the eight creases around in order to make a star-shape. (Make valley-folds on the eight creases around.)
(３７)
Fold the top left edge in the direction of the arrow while holding the paper like this picture.
(３８)
Fold the edge like this picture.
Then fold the paper in the direction of the arrow.
(３９)
Fold the top right edge in the direction of the arrow while holding the paper like this picture.
(４０)
Fold the edge like this picture.
Then turn the paper over as it is while pinching the top that you have folded.
