"To be honest, I would love to carry it without a cover and showcase the design of the device itself, but I inevitably drop it at least once or twice, so going without a cover is just not feasible."
"And, having realized the convenience of always carrying a few cards together in a shoulder bag, I chose this one that fulfills all my needs."

I think the strap might be a bit too bulky (too thick), but overall I find it simple and good. The cover also seems sturdy. That said, it has a reassuring volume that doesn't get in the way.
"I would be even happier if you could make it with a slightly more delicate strap, and a design that doesn't get too bulky even when adjusting the length."
"If there were a slightly thinner strap, I would like to buy another color and change it according to my mood."

I chose the card holder in Black, but it's more see-through than I expected. It's a bit embarrassing that the cards inside are completely visible. Like my library card, haha.
It's a bit concerning from a security standpoint that the credit card is see-through.

Also, as others have mentioned, it might be fitting a bit too snugly, making it a little difficult to take out. That said, I’m not too troubled since I can make contactless payments with my credit card while it’s still in the case.

The case is very simple, but the pouch is very cute!
However, I wanted to put my driver's license and credit card in the pouch, but it was quite tight even to fit one card in, and I had to force it in and out, so I was worried it might break, and I gave up on putting the card in...
I wish it had been just a little bigger.

A clear case with a black pouch, and the strap is gray.
The feel of the clear case and strap is simple, casual, and cute.
The pouch is barely big enough for a commuter pass...
It can hold a few sheets, but they don't go in smoothly, so that was a bit disappointing.