I'm very satisfied with the shop (emails, packaging and delivery).
I live in Hong Kong (and don't know Japanese). The shop is very quick (they sent me the products the 2nd day after I paid). The packaging was good (I delivered via Rakuten Global Express) when I received the box (in Hong Kong). I bought 2 duvet covers at the same time.
I definitely will buy from this shop again (especially I buy from overseas).
Sorry, I don't know Japanese.