Step 1:
The paper for the large outer box is twice the size of the papers for the small boxes and lid.

Step 6:
Fold over these lines, the mountain-folds are already prefolded

Step 5:
Prefold the edges to the centerline

Step 2:
Prefold in half

Step 4:
Prefold in half

Step 3:
Fold the edges to the centerline, then unfold the model.

Step 10:
Prefold in half over these two lines

Step 8:
Make sharper folding lines

Step 9:
The outer box is done....

Step 7:
Use tape or glue to close the edges, see white lines.

Step 16:
Fold over these two lines, start with the upper line

Step 15:
Use tape or glue to connect the edges

Step 12:
Prefold the edges to the center

Step 11:
Fold the corners to the center

Step 14:
Pull/fold the four corners inwards.

Step 13:
Fold one flap outwards

Step 21:
Fold the corners to the center.

Step 19:
The smaller boxes are fixed with tape (or glue)

Step 20:
Prefold in half over these two lines

Step 18:
Make three more of these small boxes.

Step 17:
Slide the flap of the small box into the outer box, see arrow.

Step 22:
Prefold over these four lines, use the width of the large box as guidance.

Step 24:
Use tape or glue to connect the edges

Step 23:
Pull/fold the four corners inwards