I ordered the Midori A5 cover as well. It hasnt arrived yet, but the review pictures showed it being courses for the cousin. It was $7 on Amazon (US).
None of the links on here seem to be working for me, so here's another one just in case.
https://www.amazon.com/gp/aw/d/B003CT47XW?ref=ppx_pt2_mob_b_prod_image
Here's a direct amazon link for the Midori A5 clear cover, just in case:
https://www.amazon.com/Midori-MD-Notebook-Cover-Size-49360006/dp/B003CT47XW/ref=sr\_1\_1?crid=3E6LECMHQ3WVX&keywords=midori+a5+cover&qid=1639755497&sprefix=midori+a5+cover%2Caps%2C115&sr=8-1