雍临领(lǐng )主孙女贺兰(⛲)茗玉(yù )自幼(yòu )聪颖,少年与盛州九(jiǔ )皇子萧承煦(🕰)意(yì )外结识,二人性情相投,情愫渐生。萧承煦“战死”的(de )消(🎲)息(🎏)误(❣)传(🌗),茗玉为救承(🖲)煦(xù )胞(bāo )(🐿)弟萧承轩,被迫嫁与承(🕯)煦(👁)三哥(gē )盛州(zhōu )王萧(xiāo )承(🚉)睿(🏐),身(shēn )陷后宫。萧承(chéng )煦(xù )屡立战功助(zhù )(😻)萧承睿称(🐶)帝,建立大晟(🤷)国(🔊),却因功高盖主遭(zāo )到其(qí )猜忌,加之得知当年(nián )(💱)母妃(fēi )身死、(㊗)父(🥎)王传(chuán )位的真(📙)相,承煦决意篡权(quán )复仇。还(hái )未得(💪)手,萧承睿却旧(🥫)疾复(👃)发(🧤)溘然(🚻)薨逝,并下诏令茗(🏯)玉之子(🥕)萧启元(yuán )继位,以牵制萧承煦,稳固朝(cháo )堂。萧承(🍑)煦被迫扶持萧启元(🈸),却仍一心求娶贺(🥋)兰茗玉。与此同时,启(qǐ )元渐渐(jiàn )长大,不(bú )(🐡)满萧承煦(xù )的(de )(😙)控制(zhì ),更(🔤)在旁人挑拨下(👵)得知母(mǔ )亲(qīn )与萧承煦私情,对其二人心生(🆙)怨(🖍)恨。贺兰茗玉以大晟(🚽)上(🎐)下安定为重(chóng )(😳),竭(🎦)力在(zài )(🚻)启元和萧(xiāo )承煦之间寻求(qiú )平(píng )衡。岂料承煦(xù )最终(zhōng )(🚩)战死,而启元也(yě )(⏺)生(🧥)就一世情痴,随(🔍)宠妃董若(🚪)萱病逝而(ér )去。茗玉为了大(💨)晟的将(🛃)来,再一次坚强陪伴在登(dēng )基的小皇帝(dì )身边。