Need to add the ability to set the search language (対象とする言語) as a permanent toggle, not a one-time search setting. If it had that, I'd give 5 stars.
This plugin allows users to earn Rakuten Super Points by simply using the Rakuten web search
It integrates with the browser's search engine and rewards points based on the number of searches
Users must log in with their Rakuten ID to participate in the point accumulation program