Renka grew up being compared to her talented older sister and being oppressed by her parents. She enters the inner palace, but due to her sister's tricks, she is chosen as a terrifying dragon god's sacrificial bride. At the depths of despair, she headed to the mountains, where she was greeted by a handsome man named Seiran. The communal life that started with a time limit, but--? 人嫌いの龍神様に一途に寵愛される、身代わりシンデレラ後宮譚！ 有能な姉と比較され、両親に虐げられて育った橙煉花。後宮入りするも、姉の策略で恐ろしい龍神の生贄花嫁に選ばれてしまう。 絶望の淵で山奥に向かうと、そこで出迎えてくれたのは見目麗しい男・青嵐だった。期限付きで始まった共同生活だが――？