雍临领主(zhǔ )孙女贺兰茗(✒)玉自幼聪(cōng )颖,少(🍩)年与(yǔ )盛州(zhōu )九皇子萧承煦(xù )意(yì )外(🤴)结识(shí ),二人(rén )性情相投(🛤),情愫渐生。萧承(chéng )煦(xù )“战(zhàn )死”的(⏬)消息误(wù )(❣)传,茗(♑)玉为(wéi )救承煦胞弟萧承轩,被迫嫁(jià )与承(🕯)煦三哥(💆)盛州(🔲)王(🥄)萧承(chéng )睿(ruì ),身(shēn )陷(🕌)后(hòu )宫。萧承煦屡(lǚ )(😚)立战(zhàn )功助萧(xiāo )(🚸)承睿(ruì )称帝,建立大晟(🤷)国,却因功高盖(🧚)主遭(🔩)到其猜忌,加之得知当年母妃身死、父王(🥔)传位(🗞)的真相(🔝),承煦决意(yì )篡权复仇。还未得手,萧承睿却旧(🥫)疾复发(fā )溘(🔔)然(🚻)薨逝(🕙),并下诏(👺)令(lìng )茗玉之(🎋)子萧(🕐)启元(yuán )继(🚴)位,以牵制萧承煦,稳固朝堂。萧承煦(👊)被迫(pò )(💍)扶持萧启元(🈸),却仍一心求娶贺兰茗玉。与此同(tóng )时,启元渐渐长大(💿),不满(🈺)萧承(chéng )煦的控制(⏲),更在旁(páng )人挑拨下得(♌)知母亲与萧(xiāo )(🏃)承煦私(sī )情,对其二(🌱)人心生怨恨。贺兰茗(🌸)玉(yù )以大晟上(shàng )下安(ān )定为重,竭力(📤)在(zài )启元和萧承煦之间寻求(qiú )(🤼)平衡。岂料承煦(xù )最终战死(⛴),而启(qǐ )元也生就一(yī )世情痴,随宠(🌲)妃(💕)董若萱病(bìng )逝(🖱)而去。茗玉为了大(dà )晟(🈸)的将来(lái )(🛌),再一次坚强陪(♊)伴在登基的小皇(🐣)帝(dì )身边(biān )。