YUIKAORI (ゆいかおり) update the release details for new Ring Ring Rainbow!! – jacket covers, full track list, and audio preview unveiled. Their 11th single is featured as opening theme for upcoming anime Castle Town Dandelion (Jokamachi no Dandelion, 城下町のダンデライオン). Plus unit members Ogura Yui and Ishihara Kaori voice key supporting characters in the comedy anime. Single Ring Ring Rainbow!! comes on two editions hitting stores on August 5th 2015.