Summer is a daughter to the Emperor's fourth concubine during the Xia Dynasty. After stumbling upon her half-brother's corpse, she finds herself faced with dangers she couldn't begin to understand. As if those troubles weren't enough, she's ambushed while traveling to her betrothed's kingdom. Summer was meant to live in luxury and safety with her new husband, but instead finds herself amongst bandits.

With the aid of her brother from a shared mother, Winter, and friend, Hanming, she navigates her way back home to Zhenxun. Yet once she returns, Summer discovers treachery had been living alongside her in the palace her entire life. It's not long before she finds herself a target.