Isekat: Crushed by a Computer, My Beloved Kitten is Transported to a Fantasy World where its Typing Skills Save the Kingdom!

Every store in the table is official — they sell keys under a contract with the publisher.

reseller — resold third-party keys: cheaper, but the seller is not the publisher and a key can go wrong

Prices are in US dollars — the store converts at its own rate and may add tax.