有着冷(lěng )漠杀神封号的燕国七皇子(zǐ )颜曦，征战齐国一(yī )举剿(jiǎo )灭，并且带走亡国的(de )小公主桃小薇，五岁(suì )萌娃桃小(xiǎo )薇进入王(wáng )府后，搅得(dé )王府上(shàng )下鸡犬(quǎn )不宁，冷血王爷首次体(tǐ )验养娃艰辛，对桃小薇照(zhào )顾(gù )的无微(wēi )不至。二人打打闹闹，彼此成长