有着冷漠杀神封号的燕(yàn )国(guó )七皇(huáng )子颜曦，征战齐(qí )国一举剿灭，并(bìng )且带走亡国的小公(gōng )主(zhǔ )桃小薇，五岁萌娃桃小(xiǎo )薇进入(rù )王府(fǔ )后，搅得王府上(shàng )下(xià )鸡犬不宁，冷血王爷首次体验养娃艰辛，对桃小薇(wēi )照顾的无微不至。二人打打闹闹，彼此成长