Tsukishim Kanna is the unknown twin sister of Tsukishima Kei. Known as a genius in the tennis industry, a girl who lived most of her life overseas, the little tennis prodigy who climbed her way up to the title of the Tennis Princess who possesses extraordinary abilities to compete with older and stronger opponents. But after entering her third Grand Slam, the certain Raven Beauty disappeared without trace. News spread like wildfire that the princess returned to her normal life. What if the flightless crows crossed paths with the peculiar lady of the Tsukishima Family?