Sakikaeri-hime no Homura Uta - Suterareta Hana wa Fukushuu ni Mau咲き還り姫の葬歌 ー捨てられた花は復讐に舞うー; Thrown Away Flowers Dance In Revenge; The Requiem Of The Blooming Princess

Princess Shuki, the third princess of the Dong Kingdom, who is despised by everyone around her because of her origins. Her only support is the time she spends with her childhood friend Gao Yei. However, Princess Chu is ordered to marry for political reasons and is separated from Kouei. (natalie.mu, translated)