NHK Easy Furigana on Hover is a Chrome extension developed by skywalk211. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. This free extension modifies the CSS on the NHK Easy News website to hide furigana, unless the user hovers over the related kanji.

The main purpose of NHK Easy Furigana on Hover is to provide a reading challenge for users by hiding the furigana above the kanji characters on the NHK Easy News website. By doing so, it encourages readers to recall the readings of the kanji without relying on the hiragana. This can be a helpful tool for those learning Japanese or looking to improve their kanji reading skills.