有着冷漠杀神封号的燕(yàn )国七皇子颜曦，征战齐国一举(jǔ )剿灭，并且带(dài )走亡国的(de )小公主桃小薇，五岁萌娃(wá )桃(táo )小薇进入(rù )王府后，搅得(dé )王府上(shàng )下鸡犬不宁，冷血王爷首(shǒu )次体(tǐ )验养娃(wá )艰辛，对桃小薇照(zhào )顾的无微不(bú )至。二人打打闹闹，彼此成长